1973-1982 Corvette Head Casting Numbers

1973

Number Engine
3998993 L48 350 Cubic-Inch Base Engine
333881 L48 350 Cubic-Inch Base Engine
333882 L48 350 Cubic-Inch Base Engine
330545 L82 350 Cubic-Inch Optional Engine
353049 LS4 454 Cubic-Inch Optional Engine

1974

Number Engine
333881 L48 350 Cubic-Inch Base Engine
333882 L48 350 Cubic-Inch Base Engine
333882 L82 350 Cubic-Inch Optional Engine
336781 LS4 454 Cubic-Inch Optional Engine

1975-1976

Number Engine
333882 All 350 Cubic-Inch Engines

1977

Number Engine
333882, L48 350 Cubic-Inch Base Engine
376450 L48 350 Cubic-Inch Base Engine
333882 L82 350 Cubic-Inch Optional Engine

1978-1972

Number Engine
462624 All 350 Cubic-Inch Engines
14014416 1980 305 Cubic-Inch Optional Engines (California)