amc 304

they dont grow on trees anymore I also sugest to have youre block sonic checked and bored accordingly it would suck if we gave you a number and it didnt work for your block:chug:
 
i have heard else were that the AMC 304 can go .125 over with no problem

There was a factory service block that had no numbers cast into the side.
It could be AMC 304 , 360 or 401, but the blocks with the side are not known to have that kind of thickness. I f it did you'd need some 360 or 401 heads to the the bigger valves, as the AMC 304 has small valve heads. With 360 engines being the most plentiful there seems to be little reason.;)
 

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