posted August 05, 2004 06:57 PM
new to the board and trying toget as much info as possible. Plan to run a strictly stock class 4/10 mile paved 350 chevy with 2 barrel and max 9.5 pistons with stock type cam. I have a set of brand new heads 624. they came on a crate engine, are these worth using in this class. they have never been fired on an engine
posted August 05, 2004 09:33 PM
i would try to find something else they are the most crack prone chevy heads made look for a set of 441,487x,or 993 instead
posted August 06, 2004 06:52 AM
A 305HO and 283 power pack head would be a good choice for strictly stock classes too.
posted August 06, 2004 02:55 PM
I've ran these heads with no problems,just don't let the water temp go past 240.Your running a stock class which is low budget,so run what you have.These heads make good power.