Cylinder Head Type: Oval Port- Small. For the stock manifold on Chevy big block engines with general duty oval port heads.
Does not fit tall deck blocks. For 396, 402, 427 and 454 V8's with OEM 4-bbl carb. Chevy big block Mark IV. Chevy big block Gen V.
Chevy big block Gen VI. 1 Intake manifold and some fittings as pictured.