1970 Nova Parts and Restoration Information

The 1970 Nova changed very little from the previous year featuring mainly stylistic changes. New side markers and taillight lenses gave the 1970 Nova a slightly different look from the 1969 Nova.

1970 would become the final year that the 396 engine was an available option. The 350 cubic inch 300 horse power would become the replacement for the top performance engine option. Only a small number of Novas produced in 1970 would use the 396 engine.

Once again Yenko dealerships would deliver a high performance Nova which remained highly sought after.  Only 175 1970 Novas would be converted by Yenko Chevrolet, continuing to make them very hard to come by.


1970 Nova OEM Brochure


1970 Nova Model Options

 
Body Styles & Model Options:
  • Coupe
  • 4-Door Sedan
  • Super Sport
 
Engine Options:
  • Super-Thrift 153 | 153ci | 90hp L4
  • L26 – Turbo-Thrift 230 | 230ci |140hp L6
  • L22 – Turbo-Thrift 250 | 250ci | 150hp L6
  • L14 – Turbo-Fire 307 | 307ci | 200hp V8
  • L65 – Turbo-Fire 350 | 350ci | 250hp V8
  • L48 – Turbo-Fire 350 | 350ci | 300hp V8
  • L34 – Turbo-Jet 396 | 402ci | 350hp V8
  • L78 – Turbo-Jet 396 | 402ci | 375hp V8
 
Available Transmissions:
  • Powerglide
  • 4-Speed Manual
  • 3-Speed
  • Torque-Drive
  • Turbo Hydra-Matic
 
Production Numbers:
  • Nova: 307,280
    • 2-Door Coupe: 0
    • 2-Door Convertible: 0
    • 2-Door Hatchback: 0
    • 2-Door Sedan: 226,223
    • 4-Door Sedan: 80,997
    • 4-Door Wagon: 0
    • Super Sport: 19,558
 
Dimensions & Capacities:
  • Length: 189.4 in / 15.78 ft
  • Width: 72.4 in / 6.03 ft
  • Height:
    • 2-Door Sedan: 52.5 in / 4.37 ft
    • 4-Door Sedan: 53.8 in / 4.48 ft
  • Wheelbase: 111 in / 9.25 ft

1970 Nova Engine Codes & Specs

Available Engine Specifications

Type

Size

Carb

RPO

Horsepower

Torque

Bore & Stroke (in.)

Compression Ratio

L4

153ci

1x1bbl

90 hp @ 4000 RPM

152 lb-ft @ 2400 RPM

3.875 x 3.25 8.5:1

L6

230ci

1x1bbl

L26

140 hp @ 4400 RPM

220 lb-ft @ 1600 RPM

3.875 x 3.25 8.5:1

L6

250ci

1x1bbl

L22

155 hp @ 4200 RPM

235 lb-ft @ 1600 RPM

3.875 x 3.53 8.5:1

V8

307ci

1x2bbl

L14

200 hp @ 4600 RPM

300 lb-ft @ 2400 RPM

3.875 x 3.25 9.0:1

V8

350ci

1x2bbl

L65

250 hp @ 4800 RPM

345 lb-ft @ 2800 RPM

4.000 x 3.48 9.0:1

V8

350ci

1x4bbl

L48

300 hp @ 4800 RPM

380 lb-ft @ 3200 RPM

4.000 x 3.48 10.25:1

V8

402ci

1x4bbl

L34

350 hp @ 5200 RPM

415 lb-ft @ 3400 RPM

4.125 x 3.75 10.25:1

V8

402ci

1x4bbl

L78

375 hp @ 5600 RPM

415 lb-ft @ 3600 RPM

4.125 x 3.75 11.0:1
4 Cylinder Engine Codes
Code

Size / Carb

HP / RPO

Transmission

Notes

153

       
CCA

153 cid 1x1bbl

90 hp

3-Speed Manual

 
CCB

153 cid 1x1bbl

90 hp

Powerglide  
6 Cylinder Engine Codes
Code

Size / Carb

HP / RPO

Transmission

Notes

CAA

250 cid 1x1bbl

155 hp L22

3-speed Manual

CAB

250 cid 1x1bbl

155 hp L22

Powerglide

CCC

230 cid 1x1bbl

140 hp L26

3-Speed Manual

CCD

230 cid 1x1bbl

140 hp L26

Torque Drive

CCG

250 cid 1x1bbl

155 hp L22

3-Speed Manual

CCK

250 cid 1x1bbl

155 hp L22

TH350

Taxi & Police Equipment

CCL

250 cid 1x1bbl

155 hp L22

3-Speed Manual

Taxi & Police Equipment

CCM

250 cid 1x1bbl

155 hp L22

Powerglide

Taxi & Police Equipment

CCZ

250 cid 1x1bbl

155 hp L22

3-Speed Manual

CRF

250 cid 1x1bbl

155 hp L22

3-Speed Manual

CRG

250 cid 1x1bbl

155 hp L22

3-Speed Manual

8 Cylinder Engine Codes
Code

Size / Carb

HP / RPO

Transmission

Notes

307

       
CCA

307 cid 1x2bbl

200 hp L14

3-Speed Manual

CCC

307 cid 1x2bbl

200 hp L14

Powerglide

CNC

307 cid 1x2bbl

200 hp L14

3-Speed Manual

CND

307 cid 1x2bbl

200 hp L14

3-Speed Manual

CNE

307 cid 1x2bbl

200 hp L14

Powerglide

CNF

307 cid 1x2bbl

200 hp L14

TH350

350

       
CGA

350 cid 1x2bbl

250 hp L65

3-Speed Manual

CGB

350 cid 1x2bbl

250 hp L65

Powerglide

CGC

350 cid 1x2bbl

250 hp L65

TH350

CGK

350 cid 1x4bbl

300 hp L48

Manual

CGL

350 cid 1x4bbl

300 hp L48

TH350

CJD

350 cid 1x4bbl

300 hp L48

TH350

CJG

350 cid 1x4bbl

300 hp L48

4-Speed Manual

CNI

350 cid 1x2bbl

250 hp L65

3-Speed Manual

CNJ

350 cid 1x4bbl

300 hp L48

Manual

CNK

350 cid 1x4bbl

300 hp L48

Powerglide

CNM

350 cid 1x2bbl

250 hp L65

Powerglide

CNN

350 cid 1x2bbl

250 hp L65

TH350

CRE

350 cid 1x4bbl

300 hp L48

TH350

CTB

350 cid 1x4bbl

300 hp L48

Manual

LT1

CTC

350 cid 1x4bbl

300 hp L48

TH400

LT1

402

       
CKO

402 cid 1x4bbl

375 hp L78

Manual

CKP

402 cid 1x4bbl

375 hp L78

TH400

L89 Aluminum Heads

CKQ

402 cid 1x4bbl

375 hp L78

Manual

Heavy Duty Clutch

CKT

402 cid 1x4bbl

375 hp L78

Manual

L89 Aluminum Heads

CKU

402 cid 1x4bbl

375 hp L78

Manual

L89 Aluminum Heads & Heavy Duty Clutch

CTW

402 cid 1x4bbl

350 hp L34

TH400

CTX

402 cid 1x4bbl

350 hp L34

Manual

CTY

402 cid 1x4bbl

375 hp L78

TH400

Click here for further engine decoding information

1970 Nova Transmission Codes

Code

Description

Engines

Assembly Plants

RR

3-Speed

All

M = Muncie

WA

4-Speed

V8

P = Muncie

UL

Torque Drive

L4, L6

A = Cleveland

VE

Powerglide

L6

C = Cleveland | T = Toledo

UE

Powerglide

V8

C = Cleveland | T = Toledo

GN

TH350

L6

X = Cleveland | Y = Toledo

GS

TH350

V8

X = Cleveland | Y = Toledo

Click here for further transmission decoding information

1970 Nova Rear Axle Ratio

Code Axle Ratio

Notes

CBA

2.56:1

Open 10-bolt

CBB

2.56:1

Positraction 10-bolt

CBC

3.36:1

Open 10-bolt

CBD

3.36:1

Positraction 10-bolt

CBL

3.07:1

Open 12-bolt

CBM

3.31:1

Open 12-bolt

CBN

3.55:1

Open

CBP

2.73:1

Open 10-bolt

CBR

3.07:1

Positraction 12-bolt

CBS

3.31:1

Positraction 12-bolt

CBT

3.55:1

Positraction

CBW

4.10:1

Positraction 12-bolt

CPA

3.08:1

Open 10-bolt

CPE

3.08:1

Positraction 10-bolt

CPI

2.56:1

Open 10-bolt

CPJ

2.56:1

Positraction 10-bolt

CPO

3.08:1

Open 10-bolt

CPR

3.08:1

Positraction 10-bolt

CPX

2.73:1

Positraction 10-bolt

Click here for further rear axle decoding information

1970 Nova Factory Options

Regular Production Option (RPO)

RPO Description Units
A01 Tinted Glass – all windows 107,186
A02 Tinted Glass – windshield only 3,505
C60 Air Conditioning – deluxe 45,139
G80 Rear axle – Positraction 19,695
J50 Vacuum power brake equipment 33,315
L34 V8 engine – 396 Hi-performance 1,802
L48 V8 engine – 350 13,991
L65 V8 engine – 350 2-bbl 20,838
L78 V8 engine – 396 Special Hi-performance 3,765
MB1 Torque-drive transmission 11,741
M15 3-speed manual transmission 49,971
M20 4-speed manual transmission 13,198
M21 4-speed manual transmission – close ratio 3,448
M35 Powerglide transmission 157,920
M38 3-speed automatic transmission – TH350 77,608
M40 3-speed automatic transmission – TH400 1,236
N40 Power steering 157,738
UM2 Stereo tape & AM/FM stereo radio 315
U17 Front compartment console instrument cluster 3,418
U63 Radio – AM push button 265,852
U69 Radio – AM/FM push button 3,114
U79 Stereo equipment 473
Z26 Super Sport 19,558

1970 Nova Cowl Tag Information

1970 Nova Example Cowl Tag & Breakdown

1970 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

70 = 1970

1 = Chevrolet

11 = Nova, L4

27 = 2-Door Sedan

WRN = Willow Run, MI

Starts with 100001

   

13 = Nova, L6

69 = 4-Door Sedan

   
   

14 = Nova, V8

     

Line 2: Trim and Paint

Interior Trim

Exterior Paint (Lower/Upper)

731 = Black Vinyl Bench (Standard)

10 = Classic White

732 = Black Vinyl Bench (Custom)

14 = Cortez Silver

733 = Black Vinyl Buckets

17 = Shadow Gray

735 = Medium Blue Cloth Bench (Standard)

19 = Tuxedo Black

736 = Medium Blue Cloth Bench (Custom)

25 = Astro Blue

740 = Medium Gold Cloth Bench (Standard)

28 = Fathom Blue

741 = Medium Gold Cloth Bench (Custom)

34 = Misty Turquoise

742 = Medium Gold Vinyl Buckets

43 = Citrus Green

744 = Dark Green Cloth Bench (Custom)

45 = Green Mist

745 = Dark Green Cloth Bench (Standard)

48 = Forest Green

746 = Medium Sandalwood Vinyl Buckets

50 = Gobi Beige

747 = Medium Sandalwood Vinyl Bench (Custom)

52 = Sunflower Yellow

 

55 = Champagne Gold

 

58 = Autumn Gold

 

63 = Desert Sand

 

65 = Hugger Orange

 

75 = Cranberry Red

 

78 = Black Cherry

 

A = White Vinyl Roof

 

B = Black Vinyl Roof

 

C = Dark Blue Vinyl Roof

 

G = Dark Green Vinyl Roof

 

H = Gold 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

 

Disclaimer
The numbers have been compiled from many sources to make these pages as correct as possible. There is no guarantee that the numbers are complete or accurate, therefore, we cannot accept any liability or responsibility for damages incurred from the use of this information.

Additional 1970 Nova Links:

 

Customer Cars

1970 Nova


Shop For 1970 Nova Parts


Request Nova Catalog


1970 Nova Resources

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