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1969 Corvette Engine Identification Codes
Engine Code/Cubic Inches/Order Code/Horsepower/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
1969 Corvette Engine Identification Codes
Engine Code/Cubic Inches/Order Code/Horsepower/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