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Re: what heads are these?
the other head casting number is 333882 atlas thats what i think it is. the block is a 72 400 small block from a 72 impala. wow bruceman1968 your pretty good. also could somebody clear this up for me, can you use 350 heads on a 400 or not? some guys told me you can't and some say just drill the steam holes. what happens if you don't drill the steam holes?
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