Thread: cylinder heads

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Originally Posted by steelsixpack101

theres a good looking set of heads i'm thinking of buying. but the intake ports are bit big. they are 320cc and my motor is 408 cubes. i'm spinning my engine 6500RPM. they are aluminum protopline heads that i can get a good deal on. but i also think the intake is just too big. i'm running solid roller cam 274/280 dur. .640 lift. am i short on cubes? or will i be fine? much help appreciated!

the cam is a bit to big ? but i do not know what you want .but them heads would work if you rpm the hell out of it. you would be much better with a smaller runner head and a smaller cam ? but if it a 13.5+cr engine put the heads on it and rpm it to the moon. hope you have good stuff in the bottom end. and a good oil pan? the small bores on the 396/402 may need some work on them for the intake valve if it a 2.300