1968
- 1982 Corvette Specification Guide
(1968-1982
Corvette Power Team Combinations)
1968
Corvette Power Team Combinations
|
Engine
Size |
H. P.
@ RPM |
Torque
@ RPM |
Compression
Ratio |
Transmission
Combination |
Axle Ratios** |
|
A |
B |
C |
D |
| 327 |
300
@
5000
|
360
@
3400 |
10.0:1 |
Manual |
Base
A/C |
3.36
3.36 |
3.08
3.08 |
--
-- |
--
-- |
|
Auto. |
Base
A/C
|
3.08
3.08 |
--
-- |
--
-- |
--
-- |
| 327 |
350
@
5800
|
360
@
3600
|
11.0:1 |
4-Spd |
Base
A/C |
3.36
3.36 |
--
-- |
3.55
3.55 |
--
-- |
| 4-Spd* |
Base
A/C
|
3.70
3.70 |
--
-- |
4.11
4.11 |
--
-- |
| 427 |
390
@
5400
|
460
@
3600
|
10.25:1 |
4-Spd |
Base
A/C |
3.08
3.08 |
--
-- |
3.36
3.36 |
--
-- |
| 4-Spd* |
Base
A/C
|
3.36
3.36 |
3.08
3.08 |
3.55
3.55 |
3.70
3.70 |
|
Auto. |
Base
A/C
|
3.08
3.08 |
2.73
2.73 |
--
-- |
--
-- |
| 427 |
400
@
5400
|
460
@
3600
|
10.25:1 |
4-Spd |
Base
A/C |
3.08
3.08 |
--
-- |
3.36
3.36 |
--
-- |
| 4-Spd* |
Base
A/C
|
3.36
3.36 |
3.08
3.08 |
3.55
3.55 |
3.70
3.70 |
|
Auto. |
Base
A/C
|
3.08
3.08 |
2.73
7.73 |
--
-- |
--
-- |
| 427 |
435
@
5800
|
460
@
4000
|
11.0:1 |
4-Spd*
|
3.55 |
3.36 |
3.70 |
4.11 |
| 427 |
430
@
4600
|
485
@
4000
|
12.5:1 |
4-Spd*
|
3.36 |
3.08 |
3.55 |
3.70
4.11
4.56 |
*
Indicates close-ratio-4-Speed
**A - Standard; B - Economy; C -
Performance; D - Special Purpose
Note: Positraction axles were available optionally for 327 cubic-inch engines
with manual transmissions.
All
other engine/transmission combinations were available as Positraction only.
1969 Corvette Power Team Combinations
|
Engine |
Transmission |
Rear Axle Ratio (:1) |
|
Without Air Cond. |
With Air Cond. |
|
Std. |
Optional |
Std. |
Optional |
|
Econ |
Perf |
Spcl |
Econ |
Perf |
Spcl |
|
BASE ENGINE |
|
300 HP
Turbo-Fire 350
350-Cu.-In. V8
|
3-Speed
(2.54:1 Low) |
3.36
* |
3.08
** |
|
|
3.36
* |
3.08
**
|
|
|
|
4-speed
(2.52:1 Low)
|
|
Turbo
Hydra-Matic
|
3.08
** |
|
3.08
** |
|
| OPTIONAL
ENGINES |
|
350 HP
Turbo-Fire 350
350-Cu.-In. V8
RPO L46
|
4-speed
(2.52:1 Low)
|
3.36
* |
|
3.55
** |
|
3.36
* |
|
3.55
** |
|
|
4-Speed
(2.20:1 Low)
|
3.70
* |
4.11
** |
3.70
* |
4.11
** |
|
390 HP
Turbo-Jet 427
427-Cu.-In. V8
RPO L36
|
4-speed
(2.52:1 Low)
|
3.08
** |
|
3.36
** |
|
3.08
** |
|
|
|
|
4-Speed
(2.20:1 Low)
|
3.36
** |
3.08
** |
3.55
** |
3.70
** |
Air
Conditioning
Not
Available |
|
Turbo
Hydra-Matic
|
3.08
** |
2.73
** |
|
|
3.08
** |
2.73
** |
|
|
|
400 HP
Turbo-Jet 427
427-Cu.-In. V8
RPO L68
|
4-speed
(2.52:1 Low) |
3.08
** |
|
3.36
** |
|
3.08
** |
|
|
|
|
4-Speed
(2.20:1 Low)
|
3.36
** |
3.08
** |
3.55
** |
3.70
** |
Air
Conditioning
Not
Available |
|
Turbo
Hydra-Matic
|
3.08
** |
2.73
** |
|
|
3.08
** |
2.73
** |
|
|
|
435 HP
Turbo-Jet 427
427-Cu.-In. V8
RPO L71
|
4-Speed
(2.20:1 Low)
|
3.55
** |
3.36
** |
3.70
** |
4.11
** |
Air Conditioning
Not Available |
|
Turbo
Hydra-Matic
|
3.08
** |
2.73
** |
3.36
** |
|
|
SPECIAL HIGH PERFORMANCE ENGINE (OFF-ROAD APPLICATION ONLY) |
|
430 HP
Turbo-Jet 427
427-Cu.-In. V8
RPO L88 |
H.D.
4-Speed
(2.20:1 Low) |
3.36
** |
3.08
** |
3.55
** |
3.70
4.11
4.56
** |
Air Conditioning
Not Available |
|
Turbo
Hydra-Matic |
3.08
** |
2.73
** |
3.36
** |
|
*Positraction available.
**Positraction required.
1970
Corvette Power Team Combinations
|
Engine
|
Transmission
|
Ratio Without Air Conditioning
|
Ratio With Air Conditioning |
|
Std.
|
Optional |
Std.
|
Optional |
|
Econ. |
Perf. |
Econ. |
Perf. |
|
BASE ENGINE |
|
300 HP
350-Cu.-In. V8
Turbo-Fire 350
|
Turbo Hydra-matic
|
3.08 |
- |
3.36 |
3.08 |
- |
3.36 |
|
4-Speed (2.52:1 low)
|
3.36 |
3.08 |
- |
3.36 |
3.08 |
- |
|
OPTIONAL ENGINES |
|
350 HP (RPO L46)
350-Cu.-In. V8
Turbo-Fire 350
|
4-Speed (2.20:1 low)
|
3.70 |
- |
4.11 |
Air Conditioning Not Available |
|
4-speed (2.52:1 low) |
3.36 |
- |
- |
3.36 |
- |
3.55 |
|
370 HP (RPO LT1)
350-Cu.-In. V8
Turbo-Fire 350
|
4-Speed (2.20:1 low)
|
3.70 |
3.55 |
4.11 |
Air Conditioning Not Available |
|
4-speed (2.52:1 low) |
3.55 |
3.36 |
3.70 |
|
390 HP (RPO LS5)
454-Cu.-In. V8
Turbo-Jet 454
|
Turbo Hydra-matic |
3.08 |
2.73 |
- |
3.08 |
- |
- |
|
4-Speed (2.20:1 low) |
3.36 |
3.08 |
3.55* |
Air Conditioning Not Available |
|
4-speed (2.52:1 low) |
3.08 |
- |
3.36 |
3.08 |
- |
- |
|
460 HP (RPO LS7)
454-Cu.-In. V8
Turbo-Jet 454
|
Turbo Hydra-matic |
3.08 |
- |
3.36 |
Air Conditioning Not Available
|
|
4-Speed (2.20:1 low) |
3.36 |
3.08 |
3.55 |
*Special 3.70 ratio also
available.
Note: The LS7
engine was not produced for retail sale.
1971 Corvette Power Team Combinations
| Engine |
Transmission |
Ratio
Without Air Conditioning |
Ratio
With Air Conditioning |
| Std. |
Optional |
Std. |
Optional |
|
Econ. |
Perf. |
Econ. |
Perf. |
|
Base engine |
|
270-hp
(210-hp†)
350-Cu.-In.
Turbo-Fire 350 V8 |
Turbo
Hydra-matic
|
3.08 |
- |
3.36 |
3.08 |
- |
3.36 |
| 4-Speed
(2.52:1 low) |
3.36 |
3.08 |
- |
3.36 |
3.08 |
- |
|
Available engines |
|
330-hp
(275-hp†)
350-Cu.-In. (RPO LT1)
Turbo-Fire 350 V8
|
4-Speed
(2.20:1 low)
|
3.70 |
3.55 |
4.11 |
Air
Conditioning Not Available
|
| 4-speed
(2.52:1 low)
|
3.55 |
3.36 |
3.70 |
|
365-hp
(285-hp†)
454-Cu.-In. (RPO LS5)
Turbo-Jet 454 V8
|
Turbo
Hydra-matic
|
3.08 |
- |
3.36 |
3.08 |
- |
- |
| 4-Speed
(2.20:1 low)
|
3.36 |
3.08 |
3.55* |
Air
Conditioning Not Available |
| 4-speed
(2.52:1 low) |
3.08 |
- |
3.36 |
3.08 |
- |
- |
|
425-hp (325-hp†)
454-Cu.-In. (RPO LS6)
Turbo-Jet 454 V8
|
Turbo
Hydra-matic
|
3.08 |
- |
3.36 |
Air Conditioning
Not Available |
| 4-Speed
(2.20:1 low)
|
3.36 |
3.08 |
3.55 |
| Special
4-Speed (2.20:1 low) |
3.36 |
3.08 |
3.55** |
†SAE net (as installed) horsepower rating.
*Special 3.70 ratio also available. **Special 3.70 or 4.11
ratio also available.
1972
Corvette Power Team Combinations
|
ENGINES |
TRANSMISSIONS |
POSITRACTION AXLE RATIOS |
|
Std. |
Economy |
Perf. |
Special |
|
Standard: 200-hp †
Turbo-Fire 350 V8 |
Std:
4-Speed (2.52:1 low) |
3.36 |
3.08 |
- |
- |
|
Turbo Hydra-matic |
3.08 |
- |
3.36 |
- |
|
AVAILABLE ENGINES |
|
255-hp †
Turbo-Fire 350 V8 (RPO LT1) |
4-Speed (2.52:1
low) |
3.55 |
3.36 |
3.70 |
- |
|
4-Speed (2.20:1
low) |
3.70 |
3.55 |
4.11 |
- |
|
Special 4-Speed
(2.20:1 low) |
3.36 |
3.08 |
3.55 |
3.70,
4.11 |
|
270-hp†
Turbo-Jet 454 V8 (RPO LS5*) |
4-Speed (2.52:1
low) |
3.08 |
- |
3.36 |
- |
|
4-Speed (2.20:1
low) |
3.36 |
3.08 |
3.55 |
3.70 |
|
Turbo Hydra-matic |
3.08 |
- |
3.36** |
- |
†Net horsepower ratings, in accordance with Society of Automotive Engineers
Standards, represent the power output of engines as installed in the automobile.
*Not
available in California.
**Not
available with air conditioning.
1973
Corvette Power Team Combinations
|
Engine Type |
Compr. Ratio |
Net H.P. |
Net Torque |
Transmission
|
Positraction
Axle Ratios(:1) |
|
"A" |
"B"
|
"C" |
|
350
L48 |
8.5:1 |
190 |
270 |
4-Speed Manual
WR |
3.36 |
3.08 |
- |
|
Turbo Hydra-Matic* |
3.08 |
- |
3.36 |
|
350
L82* |
9.0:1 |
250 |
285 |
4-Speed Manual
WR |
3.55 |
3.36 |
3.70# |
|
4-Speed
Manual CR* |
3.70 |
3.55a |
- |
|
Turbo Hydra-Matic* |
3.55 |
3.36 |
3.70 |
|
454
LS4* |
8.25:1 |
275 |
395 |
4-Speed Manual
WR |
3.08 |
- |
3.36 |
|
4-Speed Manual
CR* |
3.36b |
- |
3.55b |
|
Turbo Hydra-Matic* |
3.08 |
- |
3.36 |
*Optional
A -
Standard Axle
B -
Economy Axle (optional)
C -
Performance Axle (optional)
# -
3.55 with Air Conditioning
WR -
Wide Ratio (2.52:1 low)
CR -
Close Ratio (2.20:1 low)
Air
Conditioning not available with 3.70:1 axle ratio or Z07 Off-Road Suspension
Package.
a -
3.70 standard with RPO Z07 Off-Road Package; 4.11, 3.55 & 3.36 optional
b -
With RPO Z07, 3.55 standard; 3.08 & 3.36 optional
1974 Corvette Power Team Combinations
|
Engine Type |
Compr. Ratio |
Net H.P. |
Net Torque |
Transmission
|
Positraction
Axle Ratios(:1) |
|
"A" |
"B"
|
"C" |
|
350
L48 |
8.5:1 |
195 |
275 |
4-Speed Manual
WR |
3.36# |
3.08# |
- |
|
Turbo Hydra-Matic* |
3.08# |
- |
3.36# |
|
350
L82* |
9.0:1 |
250 |
285 |
4-Speed Manual
WR |
3.55# |
- |
3.70 |
|
4-Speed
Manual CR* |
3.70 |
3.55#a |
- |
|
Turbo Hydra-Matic* |
3.55# |
- |
3.70 |
|
454
LS4* |
8.25:1 |
270 |
380 |
4-Speed Manual
WR |
3.08# |
- |
3.36 |
|
4-Speed Manual
CR* |
3.36#b |
3.08# |
3.55b |
|
Turbo Hydra-Matic* |
3.08# |
- |
3.36 |
*Optional
A -
Standard Axle
B -
Economy Axle (optional)
C -
Performance Axle (optional)
WR -
Wide Ratio (2.52:1 low Muncie - 2.64:1 low Warner)
CR -
Close Ratio (2.20:1 low Muncie - 2.43:1 low Warner)
# - Air
Conditioning available
Air
Conditioning not available with Z07 Off-Road Package.
a -
3.70 standard with RPO Z07 Off-Road Package; 4.11, 3.55 & 3.36 optional
b -
With RPO Z07, 3.55 standard; 3.08 & 3.36 optional
1975
Corvette Power Team Combinations
|
Engine Type |
Compr. Ratio |
Net H.P. |
Net Torque |
Transmission
|
Positraction
Axle Ratios(:1) |
|
"A" |
"B"
|
"C" |
|
350
L48 |
8.5:1 |
165 |
255 |
4-Speed Manual
WR |
3.36 |
3.08 |
- |
|
Turbo Hydra-Matic
400* |
3.08 |
2.73 |
- |
|
350
L82* |
9.0:1 |
205 |
255 |
4-Speed Manual
WR |
3.55 |
- |
- |
|
4-Speed
Manual CR* |
3.55 |
- |
3.70 |
|
Turbo Hydra-Matic
400* |
3.36 |
- |
3.55 |
*Optional
A -
Standard Axle
B -
Highway Axle (optional)
C -
High-Altitude/Performance Axle (optional)
WR -
Wide Ratio ( 2.64:1 low )
CR -
Close Ratio ( 2.43:1 low )
Air
Conditioning available with all axle ratios except 3.70.
1976
Corvette Power Team Combinations
|
Engine Type |
Compr. Ratio |
Net H.P. |
Net Torque |
Transmission
|
Positraction
Axle Ratios(:1) |
|
"A" |
"B"
|
"C" |
|
350
L48 |
8.5:1 |
180 |
270 |
4-Speed Manual
WR# |
3.36 |
3.08 |
- |
|
Turbo Hydra-Matic
350* |
3.08 |
- |
- |
|
350
L82*# |
9.0:1 |
210 |
255 |
4-Speed Manual
WR |
3.55 |
- |
- |
|
4-Speed
Manual CR* |
3.55 |
- |
3.70 |
|
Turbo Hydra-Matic
400* |
3.36 |
- |
3.55 |
*Optional
#
- Not available in California
A -
Standard Axle
B -
Highway Axle (optional)
C -
High-Altitude/Performance Axle (optional)
WR -
Wide Ratio ( 2.64:1 low )
CR -
Close Ratio ( 2.43:1 low )
Air
Conditioning available with all axle ratios except 3.70.
1977
Corvette Power Team Combinations
|
Engine Type |
Compr. Ratio |
Net H.P. |
Net Torque |
Transmission
|
Positraction
Axle Ratios(:1) |
|
"A" |
"B"
|
"C" |
|
350
L48 |
8.5:1 |
180 |
270 |
4-Speed Man. WR#** |
3.36 |
3.08 |
- |
|
Turbo Hydra-Matic
350* |
3.08 |
- |
3.08 |
|
350
L82*# |
9.0:1 |
210 |
255 |
4-Speed Man. WR** |
3.70 |
3.55 |
- |
|
4-Speed
Man. CR*/** |
3.70 |
3.55 |
3.55 |
|
Turbo Hydra-Matic
400* |
3.55 |
- |
- |
*Optional
** With
High-Altitude Emission equipment
#
- Not available in California
A -
Standard Axle
B -
Optional Axle
C -
Axle with High-Altitude Emission Equipment (optional)
"A" &
"B" - Below 4000 feet altitude in 49 states and all altitudes in California
"C" -
Above 4000 feet altitude in all states except California
WR -
Wide Ratio ( 2.64:1 low )
CR -
Close Ratio ( 2.43:1 low )
Air
Conditioning available with all axle ratios except 3.70.
1978 Corvette
Power Team Combinations
|
Engine Type |
Net H.P. |
4-Speed Man.
2.85:1 low |
4-Speed Man.
2.64:1 low
|
4-Speed Man.
2.43:1 low
|
Turbo Hydra-Matic 350 |
|
Below 4K ft. |
Abv. 4K |
|
350
L48 Fed |
185/175* |
3.36:1 |
N/A |
N/A |
3.08:1 |
3.55:1 |
|
350
L48 Calif |
175 |
N/A |
N/A |
N/A |
3.55:1 |
N/A |
|
350
L82** |
220 |
N/A |
3.70:1
3.36:1# |
3.70:1 |
3.55:1 |
N/A |
* 175
horsepower rating with High-Altitude Emission Equipment
**
Optional L82 engine not available in California; Maryland; Florida; Oregon;
Washington; Boston; Chicago; Des Plaines, IL; Barrington, IL; Grand Rapids, MI;
and Cook County, IL.
# -
3.70 axle is standard; 3.36 is available highway ratio
N/A -
Not Available
Note:
California Emission Equipment required for registration in California.
In other states, High-Altitude Emission Equipment may be required in areas 4,000
feet or more above sea level.
Air
conditioning available with all axle ratios except 3.70.
1979
Corvette Power Team Combinations
|
Engine Type |
Net H.P. |
4-Speed Man.
2.85:1 low |
4-Speed Man.
2.64:1 low
|
4-Speed Man.
2.43:1 low
|
Turbo Hydra-Matic 350
Transmission |
|
350
L48 Fed |
195 |
3.36:1 |
N/A |
N/A |
3.55:1 |
|
350
L48 H/A |
195 |
N/A |
N/A |
N/A |
3.55:1 |
|
350
L48 Calif. |
195 |
N/A |
N/A |
N/A |
3.55:1 |
|
350
L82* |
225 |
N/A |
3.70:1
3.36:1# |
3.70:1 |
3.55:1 |
*
Optional L82 engine not available in California
# -
3.70 axle is standard; 3.36 is available Highway ratio
N/A -
Not Available
H/A -
High-Altitude Emission
Note:
California Emission Equipment required for registration in California.
In other states, High-Altitude Emission Equipment may be required in areas 4,000
feet or more above sea level.
1980
Corvette Power Team Combinations
|
Engine Type |
Net H.P. |
4-Speed Manual
2.88:1 low |
Turbo Hydra-Matic 350
Transmission |
|
350
L48 |
190 |
3.07:1 |
3.07:1 |
|
305
LG4 Calif. |
180 |
N/A |
3.07:1 |
|
350
L82* |
230 |
N/A |
3.07:1 |
* Optional L82 engine
N/A - Not Available
1981
Corvette Power Team Combinations
|
Engine Type |
Net H.P. |
4-Speed Manual
2.88:1 low |
Turbo Hydra-Matic
350 Transmission |
|
350
L81 |
190 |
2.72:1 |
2.87:1 |
1982 Corvette
Power Team Combinations
|
Engine Type |
Net H.P. |
Turbo Hydra-Matic
700-R4 Transmission |
|
350
L83 |
200 |
2.72:1 Standard
2.87:1 Collector Edition |
|
