Quote:
Originally Posted by menace1
This engine has a block stamping FOAE-AA that I think puts it right around 91-95The question is, do these blocks have a 4 bolt main or two bolt and are they any better or worse than the earlier 351w blocks?
Thanks,
Glenn
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I'm pretty sure all factory 351-W blocks are 2 bolt main blocks.The blocks made from 1969 to 1974 had a little more "meat" in the bottom end in the area of the mains,in 1975 they changed the castings and from then on the blocks are basically the same.
With that said,I know a guy that's a big time drag racer running a 351-W block based engine,he told me he uses whatever blocks he can find and didn't see any real difference from the early blocks to the later made blocks,he said they all blow eventually with the kind of HP he makes...
If you can find an early block, get it,if not,don't worry about it,use what you can find....
David