C3 Corvette Engine Identification Codes
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1968 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
HE | 327 | Base | 300 | Rochester Q-jet & Manual Transmission |
HO | 327 | Base | 300 | Rochester Q-jet & Turbo Hydra-Matic |
HP | 327 | L79 | 350 | Rochester Q-jet, A/C, P/S & Manual Transmission |
HT | 327 | L79 | 350 | Rochester Q-jet, Special Cam & 4-Speed |
IL | 427 | L36 | 390 | Rochester Q-jet, Hydraulic Lifters & 4 Speed |
IQ | 427 | L36 | 390 | Rochester Q-jet, Hydraulic Lifters & Turbo Hydra-Matic |
IM | 427 | L68 | 400 | L36 Engine with Holley 3x2BC & 4-Speed |
IO | 427 | L68 | 400 | L36 Engine with Holley 3x2BC & Turbo Hydra-Matic |
IR | 427 | L71 | 435 | Holley 3x2BC, Mechanical Lifters & 4-Speed |
IU | 427 | L89 | 435 | L71 Engine with Aluminum Heads & 4-Speed |
IT | 427 | L88 | 430 | Holley 1x4BC, Heavy-Duty Engine & M22 4-Speed |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1969 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
HY | 350 | Base | 300 | Rochester Q-jet & Manual Transmission |
HZ | 350 | Base | 300 | Rochester Q-jet & Turbo Hydra-Matic |
HW | 350 | L46 | 350 | Rochester Q-jet, Special Cam & 4-Speed |
HX | 350 | L46 | 350 | Rochester Q-jet, Special Cam, A/C & 4-Speed |
GD | 350 | L46 | 350 | Rochester Q-jet, Special Cam, A/C, K66 & 4-Speed |
LM | 427 | L36 | 390 | Rochester Q-jet, Hydraulic Lifters & 4-Speed |
LL | 427 | L36 | 390 | Rochester Q-jet, Hydraulic Lifters & Turbo Hydra-Matic |
LQ | 427 | L68 | 400 | L36 Engine with Holley 3x2BC & 4-Speed |
LN | 427 | L68 | 400 | L36 Engine with Holley 3x2BC & Turbo Hydra-Matic |
LO | 427 | L88 | 430 | Holley 1x4BC, Heavy-Duty Engine & M22 4-Speed |
LV | 427 | L88 | 430 | Holley 1x4BC, Heavy-Duty Engine & Turbo Hydra-Matic |
LR | 427 | L71 | 435 | Holley 3x2BC, Mechanical Lifters & 4-Speed |
LX | 427 | L71 | 435 | Holley 3x2BC, Mechanical Lifters & Turbo Hydra-Matic |
LP | 427 | L89 | 435 | L71 Engine with Aluminum Heads & 4-Speed |
LW | 427 | L89 | 435 | L71 Engine with Aluminum Heads & Turbo Hydra-Matic |
LT | 427 | L71 | 435 | Holley 3x2BC, Mechanical Lifters, MA6 & 4-Speed |
LU | 427 | L89 | 435 | L71 Engine with Aluminum Heads, MA6 & 4-Speed |
ME | 427 | ZL1 | 430 | ZL1 Performance Package (L88 Engine) & M22 4-Speed |
MG | 427 | ZL1 | 430 | ZL1 Perf Package (L88 Engine) & M22 Turbo Hydra-Matic |
MH | 427 | L36 | 390 | Rochester Q-jet, K66 & 4-Speed |
MI | 427 | L36 | 390 | Rochester Q-jet, K66 & Turbo Hydra-Matic |
MJ | 427 | L68 | 400 | L36 Engine with Holley 3x2BC, K66 & Turbo Hydra-Matic |
MK | 427 | L68 | 400 | L36 Engine with Holley 3x2BC, K66 & 4-Speed |
MS | 427 | Central Office Production Order, Details Unknown | ||
MR | 427 | L88 | 430 | Holley 1x4BC, Heavy-Duty Engine & M22 4-Speed |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1970 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
CTL | 350 | Base | 300 | Rochester Q-jet & 4-Speed |
CTD | 350 | Base | 300 | Rochester Q-jet & 4-Speed |
CTM | 350 | Base | 300 | Rochester Q-jet & Turbo Hydra-Matic |
CTG | 350 | Base | 300 | Rochester Q-jet & Turbo Hydra-Matic |
CTN | 350 | L46 | 350 | Rochester Q-jet, Performance Cam & 4-Speed |
CTH | 350 | L46 | 350 | Rochester Q-jet, Performance Cam & 4-Speed |
CTO | 350 | L46 | 350 | Rochester Q-jet, Performance Cam, A/C & 4-Speed |
CTJ | 350 | L46 | 350 | Rochester Q-jet, Performance Cam, A/C & 4-Speed |
CTP | 350 | L46 | 350 | Rochester Q-jet, Performance Cam, T/I & 4-Speed |
CTQ | 350 | L46 | 350 | Rochester Q-jet, Performance Cam, A/C, T/I & 4-Speed |
CTU | 350 | LT1 | 370 | Holley 1x4BC, Mechanical Lifters, T/I & 4-Speed |
CTK | 350 | LT1 | 370 | Holley 1x4BC, Mechanical Lifters, T/I & 4-Speed |
CTV | 350 | ZR1 | 370 | Performance Package (LT1 Engine) & M22 4-Speed |
CZU | 454 | LS5 | 390 | Rochester Q-jet, Hydraulic Lifters & 4-Speed |
CGW | 454 | LS5 | 390 | Rochester Q-jet, Hydraulic Lifters & Turbo Hydra-Matic |
CRI | 454 | LS5 | 390 | Rochester Q-jet, Hydraulic Lifters, T/I & 4-Speed |
CRJ | 454 | LS5 | 390 | Rochester Q-jet, Hydraulic Lifters, T/I & Turbo Hydra-Matic |
CZL | 454 | LS7* | 465 | Holley 1x4BC, Mechanical Lifters, Aluminum Heads & 4-Speed |
CZN | 454 | LS7* | 465 | Holley 1x4BC, Mechanical Lifters, Aluminum Heads & THM |
* Records indicate none were produced
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1971 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
CJL | 350 | Base | 270 | Rochester Q-jet & 4-Speed |
CGT | 350 | Base | 270 | Rochester Q-jet & Turbo Hydra-Matic |
CJK | 350 | Base | 270 | Rochester Q-jet & Turbo Hydra-Matic |
CGZ | 350 | LT1 | 330 | Holley 1x4BC, Mechanical Lifters & 4-Speed |
CGY | 350 | ZR1 | 330 | Performance Package (LT1 Engine) & M22 4-Speed |
CPH | 454 | LS5 | 365 | Rochester Q-jet, Hydraulic Lifters & 4-Speed |
CPJ | 454 | LS5 | 365 | Rochester Q-jet, Hydraulic Lifters & Turbo Hydra-Matic |
CPW | 454 | LS6 | 425 | Holley 1x4BC, Mechanical Lifters, Aluminum Heads & 4-Speed |
CPX | 454 | LS6 | 425 | Holley 1x4BC, Mechanical Lifters, Aluminum Heads & THM |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1972 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
CKW | 350 | Base | 200 | Rochester Q-jet & 4-Speed |
CDH | 350 | Base | 200 | Rochester Q-jet, NB2 & 4-Speed |
CKX | 350 | Base | 200 | Rochester Q-jet & Turbo Hydra-Matic |
CDJ | 350 | Base | 200 | Rochester Q-jet, NB2 & Turbo Hydra-Matic |
CKY | 350 | LT1 | 255 | Holley 1x4BC, Mechanical Lifters & 4-Speed |
CRT | 350 | LT1 | 255 | Holley 1x4BC, Mechanical Lifters, K19 & 4-Speed |
CKZ | 350 | ZR1 | 255 | Performance Package (LT1 Engine) & M22 4-Speed |
CPH | 454 | LS5 | 270 | Rochester Q-jet, Hydraulic Lifters & 4-Speed |
CPJ | 454 | LS5 | 270 | Rochester Q-jet, Hydraulic Lifters & Turbo Hydra-Matic |
CSR | 454 | LS5 | 270 | Rochester Q-jet, Hydraulic Lifters, K19 & 4-Speed |
CSS | 454 | LS5 | 270 | Rochester Q-jet, Hydraulic Lifters, K19 & Turbo Hydra-Matic |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1973 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
CKZ | 350 | L48 | 190 | 4-Speed |
CLA | 350 | L48 | 190 | Turbo Hydra-Matic 400 |
CLB | 350 | L48 | 190 | 4-Speed (California) |
CLC | 350 | L48 | 190 | Turbo Hydra-Matic 400 (California) |
CLD | 350 | L82 | 250 | Turbo Hydra-Matic 400 |
CLH | 350 | L82 | 250 | Turbo Hydra-Matic 400 (California) |
CLR | 350 | L82 | 250 | 4-Speed |
CLS | 350 | L82 | 250 | 4-Speed (California) |
CWM | 454 | LS4 | 275 | 4-Speed |
CWR | 454 | LS4 | 275 | Turbo Hydra-Matic 400 |
CWS | 454 | LS4 | 275 | Turbo Hydra-Matic 400 (California) |
CWT | 454 | LS4 | 275 | 4-Speed (California) |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1974 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
CKZ | 350 | L48 | 195 | 4-Speed |
CLA | 350 | L48 | 195 | Turbo Hydra-Matic 400 |
CLB | 350 | L48 | 195 | 4-Speed (California) |
CLC | 350 | L48 | 195 | Turbo Hydra-Matic 400 (California) |
CLD | 350 | L82 | 250 | Turbo Hydra-Matic 400 |
CLH | 350 | L82 | 250 | Turbo Hydra-Matic 400 (California) |
CLR | 350 | L82 | 250 | 4-Speed |
CLS | 350 | L82 | 250 | 4-Speed (California) |
CWM | 454 | LS4 | 270 | 4-Speed |
CWR | 454 | LS4 | 270 | Turbo Hydra-Matic 400 |
CWS | 454 | LS4 | 270 | Turbo Hydra-Matic 400 (California) |
CWT | 454 | LS4 | 270 | 4-Speed (California) |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1975 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
CHA | 350 | L48 | 165 | 4-Speed (Federal Emissions) |
CHB | 350 | L48 | 165 | Turbo Hydra-Matic 400 (Federal Emissions) |
CHC | 350 | L82 | 205 | 4-Speed (Federal Emissions) |
CHR | 350 | L82 | 205 | Turbo Hydra-Matic 400 (Federal Emissions & California) |
CHU | 350 | L48 | 165 | 4-Speed (Federal Emissions) |
CHZ | 350 | L48 | 165 | Turbo Hydra-Matic 400 (California Emissions) |
CKC | 350 | L82 | 205 | Turbo Hydra-Matic 400 (Federal Emissions) |
CRJ | 350 | L48 | 165 | 4-Speed (Federal Emissions) |
CRK | 350 | L48 | 165 | Turbo Hydra-Matic 400 (Federal) Emissions |
CRL | 350 | L82 | 205 | 4-Speed (Federal Emissions) |
CRM | 350 | L82 | 205 | Turbo Hydra-Matic 400 (Federal Emissions) |
CUA | 350 | L48 | 165 | 4-Speed (Federal Emissions) |
CUB | 350 | L48 | 165 | 4-Speed (Federal Emissions) |
CUD | 350 | L82 | 205 | 4-Speed (Federal Emissions) |
CUT | 350 | L82 | 205 | 4-Speed (Federal Emissions) |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1976 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
CHC | 350 | L82 | 210 | 4-Speed (Federal Emissions) |
CKC | 350 | L82 | 210 | Turbo Hydra-Matic 400 (Federal Emissions) |
CKW | 350 | L48 | 180 | 4-Speed (Federal Emissions) |
CKX | 350 | L48 | 180 | Turbo Hydra-Matic 350 (Federal Emissions) |
CLM | 350 | Unverified | ||
CLR | 350 | Unverified | ||
CLS | 350 | L48 | 180 | Turbo Hydra-Matic 350 (California Emissions) |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1977 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
CHD | 350 | L48 | 180 | Turbo Hydra-Matic 350 (California Emissions) |
CKD | 350 | L48 | 180 | Turbo Hydra-Matic 350 (High Altitude) |
CKZ | 350 | L48 | 180 | 4-Speed (Federal Emissions) |
CLA | 350 | L48 | 180 | Turbo Hydra-Matic 350 (Federal Emissions) |
CLB | 350 | L48 | 180 | Turbo Hydra-Matic 350 (High Altitude) |
CLC | 350 | L48 | 180 | Turbo Hydra-Matic 350 (California Emissions) |
CLD | 350 | L82 | 210 | 4-Speed (Federal Emissions) |
CLF | 350 | L82 | 210 | Turbo Hydra-Matic 400 (California Emissions) |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1978 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
CHW | 350 | L48 | 185 | 4-Speed (Federal Emissions) |
CLM | 350 | L48 | 185 | Turbo Hydra-Matic 350 (Federal Emissions) |
CLR | 350 | L48 | 175 | Turbo Hydra-Matic 350 (California Emissions) |
CLS | 350 | L48 | 175 | Turbo Hydra-Matic 350 (High Altitude) |
CMR | 350 | L82 | 220 | 4-Speed (Federal Emissions) |
CMS | 350 | L82 | 220 | Turbo Hydra-Matic 350 (Federal Emissions) |
CUT | 350 | L48 | 185 | Turbo Hydra-Matic 350 (Federal Emissions) |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1979 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
ZAA | 350 | L48 | 195 | 4-Speed (Federal Emissions - Early) |
ZAB | 350 | L48 | 195 | Turbo Hydra-Matic 350 (Federal Emissions - Early) |
ZAC | 350 | L48 | 195 | Turbo Hydra-Matic 350 (California Emissions - Early) |
ZAD | 350 | L48 | 195 | Turbo Hydra-Matic 350 (High Altitude) |
ZAF | 350 | L48 | 195 | 4-Speed (Federal Emissions) |
ZAH | 350 | L48 | 195 | Turbo Hydra-Matic 350 (Federal Emissions) |
ZAJ | 350 | L48 | 295 | Turbo Hydra-Matic 350 (California Emissions) |
ZBA | 350 | L82 | 225 | 4-Speed (Federal Emissions) |
ZBB | 350 | L82 | 225 | Turbo Hydra-Matic 350 (Federal Emissions) |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1980 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
ZAK | 350 | L48 | 190 | Turbo Hydra-Matic 350 (Federal Emissions) |
ZAM | 350 | L48 | 190 | 4-Speed (Federal Emissions) |
ZBC | 350 | L82 | 230 | Turbo Hydra-Matic 350 (Federal Emissions) |
ZBD | 350 | L82 | 230 | 4-Speed (Federal Emissions) |
ZCA | 305 | LG4 | 180 | Turbo Hydra-Matic 350 (California Emissions) |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1981 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
ZDA | 350 | L81 | 190 | 4-Speed (Federal Emissions) |
ZDB | 350 | L81 | 190 | Turbo Hydra-Matic 350 (California Emissions) |
ZDC | 350 | L81 | 190 | 4-Speed (California Emissions) |
ZDD | 350 | L81 | 190 | Turbo Hydra-Matic 350 (Federal Emissions) |
1968 | 1969 | 1970 | 1971 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 |
1982 Corvette Engine Identification Codes
Engine Code | Cubic Inches | Order Code | HP | Applicable Equipment |
ZBA | 350 | L83 | 200 | Turbo Hydra-Matic 700-R4 (Federal Emissions) |
ZBC | 350 | L83 | 200 | Turbo Hydra-Matic 700-R4 (California Emissions - Early) |
ZBN | 350 | L83 | 200 | Turbo Hydra-Matic 700-R4 (California Emissions) |