cylinder head tagged posts

Cylinder head casting number usage

January 2, 2010 Engine

 

1964-74 PONTIAC V8 CYLINDER HEAD CASTING NUMBERS

1964 326/250 hp 326/280 hp 389/215, 230, 235 hp 389/267, 283, 303, 306 hp 389/325, 330, 348 hp 421/320 hp 421/350, 370 hp

1965 326/250 hp 326/285 hp 389/256 hp 389/290, 325, 333 hp 389/335, 338, 360 hp 421/338 hp 421/356, 376 hp NOTE: All casting #s are on end port.

1966 230/165 hp 230/207 hp 326/250 hp 326/285 hp 389/256 hp 389/290, 325, 333 hp 389/335, 360 (GTO) hp 421/338, 350 hp 421/356, 376 hp

1967 230/165 hp 230/215 hp 326/250 hp 326/285 hp 400/255, 260, 265 hp 400/290 hp 400/325, 333 hp 400/350 hp (Grand Prix) 400/325, 335, 360 hp 400/325, 360 hp, Ram Air 428/360, 376 hp

1968 250/175 hp

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