1974 Nova Parts and Restoration Information

nova_03

The 1974 Nova was the final year for the third generation Chevy X-Body. It featured minor changes such as larger parking lights, a new bowtie grille emblem, and new larger bumpers that help in minor impacts.

The SS option was slightly revised with new stripes now on the hood and trunk. The tail light panel was no longer painted black but the window frames and sport mirrors were. The Powerglide transmission was also replaced by a lighter weight version of the 3-speed Turbo Hydra-Matic 350. The 307 cubic inch engine was also dropped as an option which left only the Turbo-Fire 350 as the V8 option.

In celebration of the upcoming bicentennial, Chevrolet created the Spirit of America Nova (RPO-Z51). This one-year option included special red, white, and blue trim, stripes, and interior. There were roughly 390,537 Novas built in 1974 and only 14,463 Spirit of America Novas were ever built.


1974 Chevy Nova OEM Brochure


1974 Nova Information

 
Body Style & Model Options:
  • Coupe
  • 4-Door Sedan
  • Hatchback Coupe
  • Hatchback Custom
  • Coupe Custom
  • 4-Door Sedan Custom
 
Engine Options:
  • L22 – Turbo-Thrift 250 | 250ci | 100hp L6
  • L65 – Turbo-Fire 350 | 350ci | 145hp V8
  • LM1 – Turbo-Fire 350 | 350ci | 160hp V8
  • L48 – Turbo-Fire 350 | 350ci | 185hp V8
 
Available Transmission:
  • 4-Speed Manual
  • 3-Speed
  • Turbo Hydra-Matic
 
Production Numbers:
  • Nova: 390,537
    • 2-Door Coupe: 0
    • 2-Door Convertible: 0
    • 2-Door Hatchback: 80,633
    • 2-Door Sedan: 210,984
    • 4-Door Sedan: 98,920
    • 4-Door Wagon: 0
    • Super Sport: 21,419
 
Dimensions & Capacities:
  • Length: 196.7 in / 16.39 ft
  • Width: 72.4 in / 6.03 ft
  • Height:
    • 2-door Sedan: 52.5 in / 4.36 ft
    • 2-Door Hatchback: 52.5 in / 4.36 ft
    • 4-Door Sedan: 53.9 in / 4.49 ft
  • Wheelbase: 111 in / 9.25 ft

 

1974 Nova Engine Codes & Specs

Available Engine Specifications

Type

Size

Carb

RPO

Horsepower

Torque

Bore & Stroke (in.)

Compression Ratio

L6

250ci

1x1bbl

L22

100 hp @ 3600 RPM

175 lb-ft @ 1800 RPM

3.875 x 3.538.25:1

V8

350ci

1x2bbl

L65

145 hp @ 3800 RPM

250 lb-ft @ 2200 RPM

4.000 x 3.488.5:1

V8

350ci

1x4bbl

LM1

160 hp @ 3800 RPM

250 lb-ft @ 2400 RPM

4.000 x 3.488.5:1

V8

350ci

1x4bbl

L48

185 hp @ 4000 RPM

270 lb-ft @ 2600 RPM

4.000 x 3.488.5:1
1974 Nova 6 Cylinder Engine Codes
Code

Size / Carb

HP / RPO

Transmission

Notes

CCK

250 cid 1x1bbl

100 hp L22

TH350

-

CCR

250 cid 1x1bbl

100 hp L22

3-Speed Manual

-

CCW

250 cid 1x1bbl

100 hp L22

TH350

NB2 California Emissions

CCX

250 cid 1x1bbl

100 hp L22

TH350

-

CJA

250 cid 1x1bbl

100 hp L22

3-Speed Manual

-

CJB

250 cid 1x1bbl

100 hp L22

TH350

NB2 California Emissions

CJC

250 cid 1x1bbl

100 hp L22

TH350

-

1974 Nova 8 Cylinder Engine Codes
Code

Size / Carb

HP / RPO

Transmission

Notes

CKB

350 cid 1x4bbl

185 hp L48

4-Speed Manual

-

CKD

350 cid 1x4bbl

160 hp LM1

TH350

-

CKH

350 cid 1x4bbl

160 hp LM1

3-Speed Manual

NB2 California Emissions

CKU

350 cid 1x4bbl

185 hp L48

TH350

-

CMA

350 cid 1x2bbl

145 hp L65

TH350

-

CMC

350 cid 1x2bbl

145 hp L65

3-Speed Manual

-

1974 Nova Transmission Codes

Code

Description

Engines

Assembly Plant

TM

3-Speed

L6, V8

S = Muncie

WC

4-Speed

V8

P = Muncie

TT

TH350

L6

B = Cleveland

TH

TH350

V8

Y = Toledo

1974 Nova Rear Axle Codes

CodeAxle Ratio

Notes

JA

2.73:1

Open

JB

3.08:1

Open

JC

3.42:1

Open

JM

2.73:1

Positraction

JN

3.08:1

Positraction

JP

3.42:1

Positraction

1974 Nova Factory Options

Regular Production Option (RPO)

RPODescriptionUnits
AK1Deluxe belts & harness front28,701
A01Tinted Glass - all windows200,223
A02Tinted Glass - windshield only7,632
A51Front bucket seat - Strato type27,923
BS1Quiet sound group21,152
B2HInterim equipment change37,741
B30Floor covering9,959
B37Floor mats75,701
B80Roof drip rails24,455
B84Body side molding117,597
B93Door edge guards80,282
CB1Vinyl roof - touring29,679
C08Exterior soft trim roof cover29,567
C50Rear window defroster49,337
C60Air Conditioning - deluxe123,370
C80Front door jam switch21,152
D33Outside mirror - remote control42,149
D35Sport mirrors17,782
D55Front compartment floor console34,512
D88Super sport stripes21,419
F40Special heavy duty front & rear suspension15,422
F41Special performance front & rear suspension891
G95Rear axle - ratio (Economy)214
JL2Disc brakes front97,517
J50Vacuum power brake equipment17,832
K05Engine block heater6,614
K7755 amp delcotron generator112,752
LM1V8 engine - 350 regular fuel14,800
L22L6 engine - 250171,116
L48V8 engine - 35014,597
L65V8 engine - 350 2-bbl189,705
L90L6 engine - 250 low compression314
M113-speed Floor shift transmission control13,708
M153-speed manual transmission44,322
M204-speed manual transmission4,667
M383-speed automatic transmission - TH350341,547
M403-speed automatic transmission - TH4001
N33Comfortilt steering wheel5,755
N41Variable ratio power steering334,894
N65Spacesaver spare tire467
P01Wheel trim cover184,994
P06Wheel trim ring1,887
QDWFR78-14/B steel belt radial tires - white stripe9,221
QEBE70-14/B white letter tires10,816
QEEE78-14 white stripe tires280,630
QEHE78-14/B bias belt tires - white stripe6,950
UA1Heavy duty battery15,533
U05Dual horn14,042
U17Front compartment console instrument cluster5,475
U35Electric clock16,554
U37Cigarette lighter21,152
U58AM/FM stereo radio1,389
U63Radio - AM push button327,369
U69Radio - AM/FM push button15,295
U76Windshield antenna2,200
U80Auxiliary speaker30,047
VE5Deluxe bumpers6,504
V01Heavy duty radiator36,373
V32Rear bumper guard equipment9,710
ZJ4Trailering towing package807
ZJ5Exterior decor package138,287
ZJ7Special wheel, hub cap and trim ring (Rally wheel)51,255
ZJ9Auxiliary lighting group13,136
Z26Super Sport21,419
Z51Spirit of America package14,463
Z54Interior decor/quiet group21,152
751Interior trim - black vinyl12,910
753Interior trim - black vinyl5,687
757Interior trim - dark green vinyl5,742

1974 Nova Cowl Tag Info

1974 Nova Example Cowl Tag & Breakdown
1974 nova

The Cowl Trim Tag, located on the cowl area identifies significant information about your car. 

Click here for further cowl tag decoding information

Line 1: Year, GM Division, Model & Body, Assembly Plant, Sequence Number

Year

GM Division

Model Series

Body Code

Assembly Plant

Sequence Number

74 = 1974

1 = Chevrolet

XX = Nova

17 = 2-Door Hatchback

K = Kansas City, MO

Starts at 100001

XY = Nova Custom

27 = 2-Door Sedan

L = Van Nuys, CA

69 = 4-Door Sedan

W = Willow Run, MI

Line 2: Trim and Paint

Interior Trim

Seat Type

Exterior Paint (Lower/Upper)

750 = Black & White Check Cloth Bench

A51 = Bucket Seats

11 = Antique White

751 = Black Cloth Bench

A52 = Bench Seat

26 = Bright Blue Metallic

752 = Black Sport Cloth Bench or Buckets

29 = Midnight Blue Metallic

754 = Black Perforated Vinyl Bench or Buckets

36 = Bright Aqua Metallic

755 = Medium Green & Black Sport Cloth Bench

40 = Lime Yellow

756 = Medium Green & Black Check Cloth Bench

46 = Bright Green Metallic

757 = Medium Green Cloth Bench

49 = Dark Green Metallic

759 = Medium Green Perforated Vinyl Buckets

50 = Cream Beige

764 = Light Neutral & Black Check Cloth Bench

51 = Bright Yellow

766 = Light Neutral Perforated Vinyl Bench or Buckets

53 = Light Gold Metallic

771 = Midnight Blue Cloth Bench

55 = Sandstone

774 = White Buckets - Spirit of America

59 = Golden Brown Metallic

825 = Black Perforated Vinyl Bench or Buckets

64 = Silver Metallic

826 = Midnight Blue Perforated Vinyl Bench

66 = Bronze Metallic

827 = Medium Saddle Perforated Vinyl Bench or Buckets

74 = Dark Red Metallic

828 = Medium Green Perforated Vinyl Bench or Buckets

75 = Medium Red

829 = Light Neutral Perforated Vinyl Bench or Buckets

A = White Vinyl Roof

B = Black Vinyl Roof

D = Blue Vinyl Roof

E = Cream Beige Vinyl Roof

F = Brown Vinyl Roof

G = Green Vinyl Roof

H = Maroon Vinyl Roof

L = Russet Vinyl Roof

R = Saddle Vinyl Roof

W = Silver Vinyl Roof

Line 3: Build Month and Week

Month

Week

01 = January

A = First Week

02 = February

B = Second Week

03 = March

C = Third Week

04 = April

D = Fourth Week

05 = May

E = Fifth Week

06 = June

07 = July

08 = August

09 = September

10 = October

11 = November

12 = December

Additional 1974 Nova Links:

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