What makes a 302 a 351?

stevenf · Sep 7, 2008

Im just gathering info on engines before I go to make the swap. My plans were a 302 because someone gave me heads, , upper and lower intake, pushrods, pretty much everything but the block. I was thinking of throwing in a mild cam with bigger injectors and ported heads and intake. I read somewhere that 351W heads will fit the 302. If this is correct, what makes the 351w? Longer strokes? bore the 302 .60 over?

engdept · Sep 7, 2008

It all depends on which 351 you are referring too. There was a small block 351 (different block than a 302) and a big block 351 (the Modified and 400 was the big block).

baddad457 · Sep 7, 2008

Actually there were 4 different "351's" in stock form. First was the old FE series 352, then came the 351W, then the 351C, then the 351M, which was actually a destroked 400. ALl had the same bore & stroke (4.00 x 3.50) You can also make a 352 by using a 3.4" crank and boring the 302 block .060. Then there's the aftemarket 5.0 blocks that allow a 4.125 bore, combine that with a 3.25" crank and you have yet another 352.

fordrngr · Sep 8, 2008

The 351W is the one that can use the same heads as a 302. The 302 has a 8.2 inch deck height and the 351W has a 9.5 inch deck height. So the 351W has a longer stroke than the 302.

What makes a 302 a 351?

stevenf

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engdept

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baddad457

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fordrngr

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