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
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.
