{"id":83165,"date":"2025-10-14T09:00:00","date_gmt":"2025-10-14T13:00:00","guid":{"rendered":"https:\/\/www.ss396.com\/cars\/?p=83165"},"modified":"2025-10-10T11:13:33","modified_gmt":"2025-10-10T15:13:33","slug":"chevy-ii-nova-rpo-code-breakdown","status":"publish","type":"post","link":"https:\/\/www.ss396.com\/cars\/chevy-ii-nova-rpo-code-breakdown\/","title":{"rendered":"Chevy II\/Nova RPO Code Breakdown"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"83165\" class=\"elementor elementor-83165\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e9d9b82 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e9d9b82\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e11fbde\" data-id=\"e11fbde\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cae9946 elementor-widget elementor-widget-text-editor\" data-id=\"cae9946\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>From 1962 through 1972, the Chevy II and Nova evolved from a lightweight compact into one of Chevrolet\u2019s most versatile and collectible muscle platforms. Whether you\u2019re decoding a rare L79 327 Nova SS, restoring a six-cylinder grocery-getter, or verifying a big-block 396 car, understanding GM RPO (Regular Production Option) codes is the key to unlocking your car\u2019s original identity. These factory-issued three-character codes reveal how every Nova was built from the engine, to the transmission, and axle ratios to suspension, trim, and appearance packages.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-748b288 elementor-widget elementor-widget-image\" data-id=\"748b288\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"640\" height=\"425\" src=\"https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/66NovaL79-0.jpg\" class=\"attachment-large size-large wp-image-83186\" alt=\"Nova RPO Codes\" srcset=\"https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/66NovaL79-0.jpg 640w, https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/66NovaL79-0-300x199.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-882c61e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"882c61e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-623684b\" data-id=\"623684b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-592b05d elementor-widget elementor-widget-heading\" data-id=\"592b05d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Nova Model Year Breakdown<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fa06e7b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fa06e7b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-79924df\" data-id=\"79924df\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f67a78f elementor-widget elementor-widget-text-editor\" data-id=\"f67a78f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>1962\u20131965 Chevy II\/Nova (1st gen):<\/strong> Compact, lightweight cars with the 153ci four and Turbo-Thrift sixes (194\/230) dominating. The SS appeared as an option package in 1963 (RPO Z03), mostly cosmetic that year.<\/p><p><strong>1966\u20131967 (1st-gen facelift):<\/strong> Performance turned up. The 327-350 hp L79 made the \u201966 Nova SS a legend; other 327 options included L30.<\/p><p><strong>1968\u20131972 Nova (3rd gen for Nova nameplate):<\/strong> Broader option spread, true SS performance packages now bundled under Z26 (Nova SS) with small-block 350s and big-block 396s offered in select years. Popular chassis and axle RPOs become common (F41, G80).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ce8ae49 elementor-widget elementor-widget-image\" data-id=\"ce8ae49\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"512\" height=\"375\" src=\"https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/unnamed.jpg\" class=\"attachment-large size-large wp-image-83192\" alt=\"\" srcset=\"https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/unnamed.jpg 512w, https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/unnamed-300x220.jpg 300w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7678608 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7678608\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dd2abe8\" data-id=\"dd2abe8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f05535d elementor-widget elementor-widget-heading\" data-id=\"f05535d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Nova Engine RPO Codes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0f01f51 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0f01f51\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f8cc699\" data-id=\"f8cc699\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0934bb7 elementor-widget elementor-widget-text-editor\" data-id=\"0934bb7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"_tableContainer_1rjym_1\"><div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"><table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"2291\" data-end=\"3370\"><thead data-start=\"2291\" data-end=\"2335\"><tr data-start=\"2291\" data-end=\"2335\"><th data-start=\"2291\" data-end=\"2297\" data-col-size=\"sm\">RPO<\/th><th data-start=\"2297\" data-end=\"2314\" data-col-size=\"md\">Engine &amp; Notes<\/th><th data-start=\"2314\" data-end=\"2335\" data-col-size=\"md\">Typical Years\/Use<\/th><\/tr><\/thead><tbody data-start=\"2350\" data-end=\"3370\"><tr data-start=\"2350\" data-end=\"2507\"><td data-start=\"2350\" data-end=\"2376\" data-col-size=\"sm\"><strong data-start=\"2352\" data-end=\"2359\">153<\/strong> (engine family)<\/td><td data-start=\"2376\" data-end=\"2427\" data-col-size=\"md\">153ci inline-4 \u201cSuper\/Hi-Thrift\u201d (base Chevy II)<\/td><td data-start=\"2427\" data-end=\"2507\" data-col-size=\"md\">\u201962\u2013\u201965 base fitments (verify by year) <span class=\"\" data-state=\"closed\"><span class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"><a class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" href=\"https:\/\/www.curbsideclassic.com\/?p=211518&amp;utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\"><span class=\"relative start-0 bottom-0 flex h-full w-full items-center\"><span class=\"flex h-4 w-full items-center justify-between overflow-hidden\"><span class=\"max-w-[15ch] grow truncate overflow-hidden text-center\">Curbside Classic<\/span><\/span><\/span><\/a><\/span><\/span><\/td><\/tr><tr data-start=\"2508\" data-end=\"2678\"><td data-start=\"2508\" data-end=\"2535\" data-col-size=\"sm\"><strong data-start=\"2510\" data-end=\"2523\">L22 \/ L14<\/strong> (by year)*<\/td><td data-start=\"2535\" data-end=\"2586\" data-col-size=\"md\">194ci Turbo-Thrift inline-6 (120 hp gross early)<\/td><td data-start=\"2586\" data-end=\"2678\" data-col-size=\"md\">\u201962\u2013\u201967 Chevy II\/Nova (verify code label per year) <span class=\"\" data-state=\"closed\"><span class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"><a class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" href=\"https:\/\/en.wikipedia.org\/wiki\/Chevrolet_Turbo-Thrift_engine?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\"><span class=\"relative start-0 bottom-0 flex h-full w-full items-center\"><span class=\"flex h-4 w-full items-center justify-between overflow-hidden\"><span class=\"max-w-[15ch] grow truncate overflow-hidden text-center\">Wikipedia<\/span><\/span><\/span><\/a><\/span><\/span><\/td><\/tr><tr data-start=\"2679\" data-end=\"2820\"><td data-start=\"2679\" data-end=\"2706\" data-col-size=\"sm\"><strong data-start=\"2681\" data-end=\"2694\">L33 \/ L26<\/strong> (by year)*<\/td><td data-start=\"2706\" data-end=\"2736\" data-col-size=\"md\">230ci Turbo-Thrift inline-6<\/td><td data-start=\"2736\" data-end=\"2820\" data-col-size=\"md\">Mid-\u201960s; availability varies by year\/trim <span class=\"\" data-state=\"closed\"><span class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"><a class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" href=\"https:\/\/en.wikipedia.org\/wiki\/Chevrolet_Turbo-Thrift_engine?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\"><span class=\"relative start-0 bottom-0 flex h-full w-full items-center\"><span class=\"flex h-4 w-full items-center justify-between overflow-hidden\"><span class=\"max-w-[15ch] grow truncate overflow-hidden text-center\">Wikipedia<\/span><\/span><\/span><\/a><\/span><\/span><\/td><\/tr><tr data-start=\"2821\" data-end=\"2938\"><td data-start=\"2821\" data-end=\"2831\" data-col-size=\"sm\"><strong data-start=\"2823\" data-end=\"2830\">L30<\/strong><\/td><td data-start=\"2831\" data-end=\"2860\" data-col-size=\"md\">327ci V8 (commonly 275 hp)<\/td><td data-start=\"2860\" data-end=\"2938\" data-col-size=\"md\">\u201965\u2013\u201967 Nova (and other Chevy lines) <span class=\"\" data-state=\"closed\"><span class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"><a class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" href=\"https:\/\/www.curbsideclassic.com\/vintage-reviews\/1960s-vintage-reviews\/gm-brands-1960s-vintage-reviews\/vintage-motor-trend-review-1966-chevy-ii-nova-ss-327\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\"><span class=\"relative start-0 bottom-0 flex h-full w-full items-center\"><span class=\"flex h-4 w-full items-center justify-between overflow-hidden\"><span class=\"max-w-[15ch] grow truncate overflow-hidden text-center\">Curbside Classic<\/span><\/span><\/span><\/a><\/span><\/span><\/td><\/tr><tr data-start=\"2939\" data-end=\"3064\"><td data-start=\"2939\" data-end=\"2949\" data-col-size=\"sm\"><strong data-start=\"2941\" data-end=\"2948\">L79<\/strong><\/td><td data-start=\"2949\" data-end=\"2979\" data-col-size=\"md\">327ci\/350 hp V8 (high-perf)<\/td><td data-start=\"2979\" data-end=\"3064\" data-col-size=\"md\"><strong data-start=\"2981\" data-end=\"3007\">1966 Nova SS highlight<\/strong>; rare and prized<\/td><\/tr><tr data-start=\"3065\" data-end=\"3229\"><td data-start=\"3065\" data-end=\"3075\" data-col-size=\"sm\"><strong data-start=\"3067\" data-end=\"3074\">L48<\/strong><\/td><td data-start=\"3075\" data-end=\"3102\" data-col-size=\"md\">350ci\/300 hp small-block<\/td><td data-start=\"3102\" data-end=\"3229\" data-col-size=\"md\">Common Nova performance V8 from \u201968-\u201972; often tied to SS content depending on year <span class=\"\" data-state=\"closed\"><span class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"><a class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" href=\"https:\/\/www.stevesnovasite.com\/threads\/was-l48-an-available-option-for-a-non-ss-1969-nova.689416\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\"><span class=\"relative start-0 bottom-0 flex h-full w-full items-center\"><span class=\"flex h-4 w-full items-center justify-between overflow-hidden\"><span class=\"max-w-[15ch] grow truncate overflow-hidden text-center\">Steve&#8217;s Nova Site<\/span><\/span><\/span><\/a><\/span><\/span><\/td><\/tr><tr data-start=\"3230\" data-end=\"3370\"><td data-start=\"3230\" data-end=\"3246\" data-col-size=\"sm\"><strong data-start=\"3232\" data-end=\"3245\">L34 \/ L78<\/strong><\/td><td data-start=\"3246\" data-end=\"3281\" data-col-size=\"md\">396ci big-block V8s (350\/375 hp)<\/td><td data-start=\"3281\" data-end=\"3370\" data-col-size=\"md\">\u201968\u2013\u201970 Nova SS (availability varies by year)<\/td><\/tr><\/tbody><\/table><\/div><\/div><p data-start=\"3372\" data-end=\"3588\">*GM reused base-engine identifiers across lines; consult your year-specific Heritage kit to confirm the exact three-character RPO attached to the 194\/230\/250 for your car.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a289cef elementor-widget elementor-widget-image\" data-id=\"a289cef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/CIMG7391.jpg\" class=\"attachment-large size-large wp-image-83189\" alt=\"\" srcset=\"https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/CIMG7391.jpg 1000w, https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/CIMG7391-300x225.jpg 300w, https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/CIMG7391-768x576.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e86417f elementor-widget elementor-widget-heading\" data-id=\"e86417f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Nova Transmission RPO Codes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1c21d0 elementor-widget elementor-widget-text-editor\" data-id=\"f1c21d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"_tableContainer_1rjym_1\"><div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"><table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"3644\" data-end=\"4174\"><thead data-start=\"3644\" data-end=\"3674\"><tr data-start=\"3644\" data-end=\"3674\"><th data-start=\"3644\" data-end=\"3650\" data-col-size=\"sm\">RPO<\/th><th data-start=\"3650\" data-end=\"3665\" data-col-size=\"md\">Transmission<\/th><th data-start=\"3665\" data-end=\"3674\" data-col-size=\"md\">Notes<\/th><\/tr><\/thead><tbody data-start=\"3689\" data-end=\"4174\"><tr data-start=\"3689\" data-end=\"3799\"><td data-start=\"3689\" data-end=\"3711\" data-col-size=\"sm\"><strong data-start=\"3691\" data-end=\"3710\">M20 \/ M21 \/ M22<\/strong><\/td><td data-start=\"3711\" data-end=\"3755\" data-col-size=\"md\">4-spd manuals (wide\/close\/\u201cRock Crusher\u201d)<\/td><td data-start=\"3755\" data-end=\"3799\" data-col-size=\"md\">Performance Novas; year\/engine dependent<\/td><\/tr><tr data-start=\"3800\" data-end=\"3904\"><td data-start=\"3800\" data-end=\"3816\" data-col-size=\"sm\"><strong data-start=\"3802\" data-end=\"3815\">M15 \/ MM4<\/strong><\/td><td data-start=\"3816\" data-end=\"3866\" data-col-size=\"md\">3- or 4-spd manual (earlier base transmissions)<\/td><td data-start=\"3866\" data-end=\"3904\" data-col-size=\"md\">Early Chevy II\/Nova manual options<\/td><\/tr><tr data-start=\"3905\" data-end=\"3999\"><td data-start=\"3905\" data-end=\"3928\" data-col-size=\"sm\"><strong data-start=\"3907\" data-end=\"3927\">M35 (Powerglide)<\/strong><\/td><td data-start=\"3928\" data-end=\"3946\" data-col-size=\"md\">2-spd automatic<\/td><td data-start=\"3946\" data-end=\"3999\" data-col-size=\"md\">Extremely common through \u201967 and still seen later<\/td><\/tr><tr data-start=\"4000\" data-end=\"4086\"><td data-start=\"4000\" data-end=\"4018\" data-col-size=\"sm\"><strong data-start=\"4002\" data-end=\"4017\">M38 (TH350)<\/strong><\/td><td data-start=\"4018\" data-end=\"4047\" data-col-size=\"md\">3-spd Turbo-Hydramatic 350<\/td><td data-start=\"4047\" data-end=\"4086\" data-col-size=\"md\">Arrives with late-\u201960s small-blocks<\/td><\/tr><tr data-start=\"4087\" data-end=\"4174\"><td data-start=\"4087\" data-end=\"4105\" data-col-size=\"sm\"><strong data-start=\"4089\" data-end=\"4104\">M40 (TH400)<\/strong><\/td><td data-start=\"4105\" data-end=\"4134\" data-col-size=\"md\">3-spd Turbo-Hydramatic 400<\/td><td data-start=\"4134\" data-end=\"4174\" data-col-size=\"md\">Big-block or heavy-duty applications<\/td><\/tr><\/tbody><\/table><\/div><\/div><p data-start=\"4176\" data-end=\"4311\">Confirm by year\/engine in the Heritage kit; NovaResource master lists also track many of these.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f039c1d elementor-widget elementor-widget-heading\" data-id=\"f039c1d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Nova Axles and Differential RPO Codes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-06589c0 elementor-widget elementor-widget-text-editor\" data-id=\"06589c0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"_tableContainer_1rjym_1\"><div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"><table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"4371\" data-end=\"4686\"><thead data-start=\"4371\" data-end=\"4392\"><tr data-start=\"4371\" data-end=\"4392\"><th data-start=\"4371\" data-end=\"4377\" data-col-size=\"sm\">RPO<\/th><th data-start=\"4377\" data-end=\"4392\" data-col-size=\"md\">Description<\/th><\/tr><\/thead><tbody data-start=\"4403\" data-end=\"4686\"><tr data-start=\"4403\" data-end=\"4457\"><td data-start=\"4403\" data-end=\"4413\" data-col-size=\"sm\"><strong data-start=\"4405\" data-end=\"4412\">G80<\/strong><\/td><td data-start=\"4413\" data-end=\"4457\" data-col-size=\"md\">Limited-slip differential (Positraction)<\/td><\/tr><tr data-start=\"4458\" data-end=\"4530\"><td data-start=\"4458\" data-end=\"4476\" data-col-size=\"sm\"><strong data-start=\"4460\" data-end=\"4475\">GM1\/GM3\/GM8<\/strong><\/td><td data-start=\"4476\" data-end=\"4530\" data-col-size=\"md\">Tall\/economy ratios (e.g., 2.56) depending on year<\/td><\/tr><tr data-start=\"4531\" data-end=\"4616\"><td data-start=\"4531\" data-end=\"4556\" data-col-size=\"sm\"><strong data-start=\"4533\" data-end=\"4555\">GU2\/ GU4\/ GU5\/ GU6<\/strong><\/td><td data-start=\"4556\" data-end=\"4616\" data-col-size=\"md\">2.73 \/ 3.08 \/ 3.23 \/ 3.42 ratios (application-dependent)<\/td><\/tr><tr data-start=\"4617\" data-end=\"4686\"><td data-start=\"4617\" data-end=\"4633\" data-col-size=\"sm\"><strong data-start=\"4619\" data-end=\"4632\">GT4 \/ GT5<\/strong><\/td><td data-start=\"4633\" data-end=\"4686\" data-col-size=\"md\">3.73 \/ 4.10 ratios (rare on street Novas; verify)<\/td><\/tr><\/tbody><\/table><\/div><\/div><p data-start=\"4688\" data-end=\"4887\">Axle ratio codes and meanings are consistent across GM lines but vary by which ratios were offered in a given Nova year; cross-check your SPID\/build sheet.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e1f220 elementor-widget elementor-widget-image\" data-id=\"8e1f220\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Rear-Sway-Bar-2-Unknown-Year-1024x768.webp\" class=\"attachment-large size-large wp-image-83191\" alt=\"\" srcset=\"https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Rear-Sway-Bar-2-Unknown-Year-1024x768.webp 1024w, https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Rear-Sway-Bar-2-Unknown-Year-300x225.webp 300w, https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Rear-Sway-Bar-2-Unknown-Year-768x576.webp 768w, https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Rear-Sway-Bar-2-Unknown-Year.webp 1280w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-033fc9e elementor-widget elementor-widget-heading\" data-id=\"033fc9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Nova Chassis and Suspension RPO Codes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d4314d elementor-widget elementor-widget-text-editor\" data-id=\"6d4314d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"_tableContainer_1rjym_1\"><div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"><table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"4946\" data-end=\"5225\"><thead data-start=\"4946\" data-end=\"4963\"><tr data-start=\"4946\" data-end=\"4963\"><th data-start=\"4946\" data-end=\"4952\" data-col-size=\"sm\">RPO<\/th><th data-start=\"4952\" data-end=\"4963\" data-col-size=\"md\">Package<\/th><\/tr><\/thead><tbody data-start=\"4974\" data-end=\"5225\"><tr data-start=\"4974\" data-end=\"5040\"><td data-start=\"4974\" data-end=\"4984\" data-col-size=\"sm\"><strong data-start=\"4976\" data-end=\"4983\">F40<\/strong><\/td><td data-start=\"4984\" data-end=\"5040\" data-col-size=\"md\">Heavy-duty suspension (earlier usage varies by line)<\/td><\/tr><tr data-start=\"5041\" data-end=\"5129\"><td data-start=\"5041\" data-end=\"5051\" data-col-size=\"sm\"><strong data-start=\"5043\" data-end=\"5050\">F41<\/strong><\/td><td data-start=\"5051\" data-end=\"5129\" data-col-size=\"md\">Special\/firm ride &amp; handling suspension (popular on performance Novas)<\/td><\/tr><tr data-start=\"5130\" data-end=\"5196\"><td data-start=\"5130\" data-end=\"5140\" data-col-size=\"sm\"><strong data-start=\"5132\" data-end=\"5139\">N10<\/strong><\/td><td data-start=\"5140\" data-end=\"5196\" data-col-size=\"md\">Dual exhaust (often tied to V8 performance packages)<\/td><\/tr><tr data-start=\"5197\" data-end=\"5225\"><td data-start=\"5197\" data-end=\"5207\" data-col-size=\"sm\"><strong data-start=\"5199\" data-end=\"5206\">N40<\/strong><\/td><td data-start=\"5207\" data-end=\"5225\" data-col-size=\"md\">Power steering<\/td><\/tr><\/tbody><\/table><\/div><\/div><p data-start=\"5227\" data-end=\"5348\">These codes are common across Chevrolets; Nova availability depends on trim\/year.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd6a8f9 elementor-widget elementor-widget-heading\" data-id=\"fd6a8f9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Nova Performance Package RPO Codes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fb20a54 elementor-widget elementor-widget-text-editor\" data-id=\"fb20a54\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"5419\" data-end=\"6035\"><thead data-start=\"5419\" data-end=\"5450\"><tr data-start=\"5419\" data-end=\"5450\"><th data-start=\"5419\" data-end=\"5425\" data-col-size=\"sm\">RPO<\/th><th data-start=\"5425\" data-end=\"5435\" data-col-size=\"md\">Package<\/th><th data-start=\"5435\" data-end=\"5450\" data-col-size=\"lg\">Years\/Notes<\/th><\/tr><\/thead><tbody data-start=\"5465\" data-end=\"6035\"><tr data-start=\"5465\" data-end=\"5626\"><td data-start=\"5465\" data-end=\"5475\" data-col-size=\"sm\"><strong data-start=\"5467\" data-end=\"5474\">Z03<\/strong><\/td><td data-start=\"5475\" data-end=\"5509\" data-col-size=\"md\"><strong data-start=\"5477\" data-end=\"5508\">Super Sport package (early)<\/strong><\/td><td data-start=\"5509\" data-end=\"5626\" data-col-size=\"lg\">1963 Chevy II\/Nova SS option on 400-series (largely appearance that year)<\/td><\/tr><tr data-start=\"5627\" data-end=\"5840\"><td data-start=\"5627\" data-end=\"5637\" data-col-size=\"sm\"><strong data-start=\"5629\" data-end=\"5636\">Z26<\/strong><\/td><td data-start=\"5637\" data-end=\"5666\" data-col-size=\"md\"><strong data-start=\"5639\" data-end=\"5665\">Nova SS package (late)<\/strong><\/td><td data-start=\"5666\" data-end=\"5840\" data-col-size=\"lg\">1968+ Nova SS; bundled performance chassis, styling, and V8 content by year. (Earlier\/later usage of Z26 evolves; verify by year.) <span class=\"\" data-state=\"closed\"><span class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"><a class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" href=\"https:\/\/www.novaresource.org\/rpo_Z26.htm?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\"><span class=\"relative start-0 bottom-0 flex h-full w-full items-center\"><span class=\"flex h-4 w-full items-center justify-between\"><span class=\"max-w-[15ch] grow truncate overflow-hidden text-center\">Nova Resource<\/span><span class=\"-me-1 flex h-full items-center rounded-full px-1 text-[#8F8F8F]\">+1<\/span><\/span><\/span><\/a><\/span><\/span><\/td><\/tr><tr data-start=\"5841\" data-end=\"5956\"><td data-start=\"5841\" data-end=\"5851\" data-col-size=\"sm\"><strong data-start=\"5843\" data-end=\"5850\">ZJ7<\/strong><\/td><td data-start=\"5851\" data-end=\"5895\" data-col-size=\"md\">Rally wheels (14\u00d76, style varies by year)<\/td><td data-start=\"5895\" data-end=\"5956\" data-col-size=\"lg\">Common on SS\/\u201cRally\u201d trims; confirm width\/finish per year<\/td><\/tr><tr data-start=\"5957\" data-end=\"6035\"><td data-start=\"5957\" data-end=\"5967\" data-col-size=\"sm\">\u00a0<\/td><td data-start=\"5967\" data-end=\"5987\" data-col-size=\"md\">\u00a0<\/td><td data-start=\"5987\" data-end=\"6035\" data-col-size=\"lg\">\u00a0<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0af6fe1 elementor-widget elementor-widget-heading\" data-id=\"0af6fe1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Nova Interior RPO Codes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d944845 elementor-widget elementor-widget-text-editor\" data-id=\"d944845\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<table><thead data-start=\"6085\" data-end=\"6106\"><tr data-start=\"6085\" data-end=\"6106\"><th data-start=\"6085\" data-end=\"6091\" data-col-size=\"sm\">RPO<\/th><th data-start=\"6091\" data-end=\"6106\" data-col-size=\"md\">Description<\/th><\/tr><\/thead><\/table><div><table><tbody><tr data-start=\"6117\" data-end=\"6189\"><td data-start=\"6117\" data-end=\"6127\" data-col-size=\"sm\"><strong data-start=\"6119\" data-end=\"6126\">U14<\/strong><\/td><td data-start=\"6127\" data-end=\"6189\" data-col-size=\"md\"><strong data-start=\"6129\" data-end=\"6163\">Special instrumentation\/gauges<\/strong> (factory gauge package)<\/td><\/tr><\/tbody><\/table><\/div><div><table><tbody><tr data-start=\"6190\" data-end=\"6236\"><td data-start=\"6190\" data-end=\"6200\" data-col-size=\"sm\"><strong data-start=\"6192\" data-end=\"6199\">D55<\/strong><\/td><td data-start=\"6200\" data-end=\"6236\" data-col-size=\"md\">Front console (with floor shift)<\/td><\/tr><\/tbody><\/table><\/div><div><table><tbody><tr data-start=\"6237\" data-end=\"6277\"><td data-start=\"6237\" data-end=\"6247\" data-col-size=\"sm\"><strong data-start=\"6239\" data-end=\"6246\">A01<\/strong><\/td><td data-start=\"6247\" data-end=\"6277\" data-col-size=\"md\">Tinted glass (all windows)<\/td><\/tr><\/tbody><\/table><\/div><div><table><tbody><tr data-start=\"6278\" data-end=\"6308\"><td data-start=\"6278\" data-end=\"6288\" data-col-size=\"sm\"><strong data-start=\"6280\" data-end=\"6287\">C60<\/strong><\/td><td data-start=\"6288\" data-end=\"6308\" data-col-size=\"md\">Air conditioning<\/td><\/tr><\/tbody><\/table><\/div><div><table><tbody><tr data-start=\"6309\" data-end=\"6380\"><td data-start=\"6309\" data-end=\"6323\" data-col-size=\"sm\"><strong data-start=\"6311\" data-end=\"6322\">K30\/K34<\/strong><\/td><td data-start=\"6323\" data-end=\"6380\" data-col-size=\"md\">Cruise control variants (availability varies by year)<\/td><\/tr><\/tbody><\/table><\/div><div><table><tbody><tr data-start=\"6381\" data-end=\"6423\"><td data-start=\"6381\" data-end=\"6397\" data-col-size=\"sm\"><strong data-start=\"6383\" data-end=\"6396\">U63 \/ U69<\/strong><\/td><td data-start=\"6397\" data-end=\"6423\" data-col-size=\"md\">AM radio \/ AM-FM radio<\/td><\/tr><\/tbody><\/table><\/div><div><table><tbody><tr data-start=\"6424\" data-end=\"6460\"><td data-start=\"6424\" data-end=\"6434\" data-col-size=\"sm\"><strong data-start=\"6426\" data-end=\"6433\">AK1<\/strong><\/td><td data-start=\"6434\" data-end=\"6460\" data-col-size=\"md\">Deluxe belts\/harnesses<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7cd1a23 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7cd1a23\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dcf9a63\" data-id=\"dcf9a63\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4573341 elementor-widget elementor-widget-text-editor\" data-id=\"4573341\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Factory gauge\/console bundles show up heavily on \u201968\u2013\u201972 cars; original-style console gauge assemblies are still sold specifically for 1968\u20131972\/74 Nova restorations, which mirrors how often U14\/console packages appeared on performance trims.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5fe8605 elementor-widget elementor-widget-image\" data-id=\"5fe8605\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/full-18542-14729-build_sheet2.jpg\" class=\"attachment-large size-large wp-image-83190\" alt=\"\" srcset=\"https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/full-18542-14729-build_sheet2.jpg 1024w, https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/full-18542-14729-build_sheet2-300x225.jpg 300w, https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/full-18542-14729-build_sheet2-768x576.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-552b92a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"552b92a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-521dee8\" data-id=\"521dee8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f77bf3d elementor-widget elementor-widget-heading\" data-id=\"f77bf3d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why RPO Codes Don't Tell The Whole Story<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aae7582 elementor-widget elementor-widget-text-editor\" data-id=\"aae7582\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>GM reused many codes across divisions and years; some codes changed meaning slightly or were package-dependent. Plants sometimes stamped option info differently (e.g., early SS identification on cowl tags), and some years don\u2019t encode everything on the VIN. For Nova SS identification and year-specific package details, combine the SPID\/build sheet, the Heritage kit, and a trusted Nova-specific reference.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2b42528 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2b42528\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-18ecb8c\" data-id=\"18ecb8c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a612d2e elementor-widget elementor-widget-heading\" data-id=\"a612d2e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Reference Links<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-35c9940 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"35c9940\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8d204aa\" data-id=\"8d204aa\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5066d87 elementor-widget elementor-widget-text-editor\" data-id=\"5066d87\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li data-start=\"8387\" data-end=\"8523\"><p data-start=\"8389\" data-end=\"8523\"><strong data-start=\"8389\" data-end=\"8438\">GM Heritage Center \u2014 Vehicle Information Kits<\/strong> (free PDFs; option charts, specs by year). <span class=\"\" data-state=\"closed\"><span class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"><a class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" href=\"https:\/\/www.gm.com\/heritage\/archive\/vehicle-information-kits?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\"><span class=\"relative start-0 bottom-0 flex h-full w-full items-center\"><span class=\"flex h-4 w-full items-center justify-between overflow-hidden\"><span class=\"max-w-[15ch] grow truncate overflow-hidden text-center\">General Motors<\/span><\/span><\/span><\/a><\/span><\/span><\/p><\/li><li data-start=\"8524\" data-end=\"8678\"><p data-start=\"8526\" data-end=\"8678\"><strong data-start=\"8526\" data-end=\"8542\">NovaResource<\/strong> \u2014 Nova SS history and RPO tables (Z03, Z26, production counts for many RPOs starting in \u201968). <span class=\"\" data-state=\"closed\"><span class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"><a class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" href=\"https:\/\/www.novaresource.org\/history.htm?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\"><span class=\"relative start-0 bottom-0 flex h-full w-full items-center\"><span class=\"flex h-4 w-full items-center justify-between\"><span class=\"max-w-[15ch] grow truncate overflow-hidden text-center\">Nova Resource<\/span><span class=\"-me-1 flex h-full items-center rounded-full px-1 text-[#8F8F8F]\">+2<\/span><\/span><span class=\"flex h-4 w-full items-center justify-between absolute\"><span class=\"max-w-[15ch] grow truncate overflow-hidden text-center\">Nova Resource<\/span><span class=\"-me-1 flex h-full items-center rounded-full px-1 text-[#8F8F8F]\">+2<\/span><\/span><\/span><\/a><\/span><\/span><\/p><\/li><li data-start=\"8679\" data-end=\"8821\"><p data-start=\"8681\" data-end=\"8821\"><strong data-start=\"8681\" data-end=\"8706\">Engine &amp; year context<\/strong> \u2014 L79\/L30 period sources and reviews to understand 1966 SS significance. <span class=\"\" data-state=\"closed\"><span class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"><a class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" href=\"https:\/\/www.ss396.com\/cars\/1966-nova\/?srsltid=AfmBOorgc0EJHByIPHNNARaFszalZUVZ6dYVXYhT1MPP8Eql3jOynW5s&amp;utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\"><span class=\"relative start-0 bottom-0 flex h-full w-full items-center\"><span class=\"flex h-4 w-full items-center justify-between\"><span class=\"max-w-[15ch] grow truncate overflow-hidden text-center\">Ground Up &#8211; SS396<\/span><span class=\"-me-1 flex h-full items-center rounded-full px-1 text-[#8F8F8F]\">+1<\/span><\/span><\/span><\/a><\/span><\/span><\/p><\/li><li data-start=\"8822\" data-end=\"9019\"><p data-start=\"8824\" data-end=\"9019\"><strong data-start=\"8824\" data-end=\"8851\">General RPO quick lists<\/strong> \u2014 cross-line code dictionaries (useful for F41, G80, GU\/GT ratios, etc.) with the caveat to verify Nova applicability per year. <span class=\"\" data-state=\"closed\"><span class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"><a class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" href=\"https:\/\/www.chevytalk.org\/CT\/RPO.pdf?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\"><span class=\"relative start-0 bottom-0 flex h-full w-full items-center\"><span class=\"flex h-4 w-full items-center justify-between overflow-hidden\"><span class=\"max-w-[15ch] grow truncate overflow-hidden text-center\">Chevy Talk<\/span><\/span><\/span><\/a><\/span><\/span><\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f5fb205 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f5fb205\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e03b8c3\" data-id=\"e03b8c3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fcf2ed8 elementor-widget elementor-widget-text-editor\" data-id=\"fcf2ed8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Do you need help decoding the RPO codes on your Chevy II or Nova? Give our friendly experts a call at (203) 235-1200! For all your Nova parts, hop on <a href=\"https:\/\/www.ss396.com\/\">SS396.com<\/a> for a full line up.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>From 1962 through 1972, the Chevy II and Nova evolved from a lightweight compact into one of Chevrolet\u2019s most versatile and collectible muscle platforms. Whether you\u2019re decoding a rare L79 327 Nova SS, restoring a six-cylinder grocery-getter, or verifying a big-block 396 car, understanding GM RPO (Regular Production Option) codes is the key to unlocking [&hellip;]<\/p>\n","protected":false},"author":24,"featured_media":83196,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[216,741],"tags":[114,913,519,518],"class_list":["post-83165","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-article","category-resto-information","tag-nova","tag-nova-rpo","tag-rpo","tag-rpo-codes"],"acf":[],"uagb_featured_image_src":{"full":["https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Codes.jpg",1200,600,false],"thumbnail":["https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Codes-150x150.jpg",150,150,true],"medium":["https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Codes-300x150.jpg",300,150,true],"medium_large":["https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Codes-768x384.jpg",768,384,true],"large":["https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Codes-1024x512.jpg",800,400,true],"1536x1536":["https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Codes.jpg",1200,600,false],"2048x2048":["https:\/\/www.ss396.com\/cars\/wp-content\/uploads\/2025\/10\/Nova-Codes.jpg",1200,600,false]},"uagb_author_info":{"display_name":"Tim King","author_link":"https:\/\/www.ss396.com\/cars\/author\/tim-k\/"},"uagb_comment_info":0,"uagb_excerpt":"From 1962 through 1972, the Chevy II and Nova evolved from a lightweight compact into one of Chevrolet\u2019s most versatile and collectible muscle platforms. Whether you\u2019re decoding a rare L79 327 Nova SS, restoring a six-cylinder grocery-getter, or verifying a big-block 396 car, understanding GM RPO (Regular Production Option) codes is the key to unlocking&hellip;","_links":{"self":[{"href":"https:\/\/www.ss396.com\/cars\/wp-json\/wp\/v2\/posts\/83165"}],"collection":[{"href":"https:\/\/www.ss396.com\/cars\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ss396.com\/cars\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ss396.com\/cars\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ss396.com\/cars\/wp-json\/wp\/v2\/comments?post=83165"}],"version-history":[{"count":24,"href":"https:\/\/www.ss396.com\/cars\/wp-json\/wp\/v2\/posts\/83165\/revisions"}],"predecessor-version":[{"id":83198,"href":"https:\/\/www.ss396.com\/cars\/wp-json\/wp\/v2\/posts\/83165\/revisions\/83198"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ss396.com\/cars\/wp-json\/wp\/v2\/media\/83196"}],"wp:attachment":[{"href":"https:\/\/www.ss396.com\/cars\/wp-json\/wp\/v2\/media?parent=83165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ss396.com\/cars\/wp-json\/wp\/v2\/categories?post=83165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ss396.com\/cars\/wp-json\/wp\/v2\/tags?post=83165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}