351C vs. 400

I have seen several modified 351 C engines but not a 400. I was just wondering why. I thought the 400 just had a longer stroke.



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They use the same block. the 351 uses a 4 inch bore with a 3.5 inch stroke. The 400 is a 4 inch bore with a 4 inch stroke. The crank and pistons are different. You can make a 400 by useing the 4 inch crank and a set of 400 pistons.



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the 351M and 400 use the same block; the 351C has a shorter deck, and has the same bell housing pattern as the 221 thru 351 Windsor block, and also the 300 six.



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I take it then that a 351 M is different than a 351 C. I know the 351 W, but not sure about the other two. Don't know if the 400 was from a "C" or an "M"

Ug! so confusing, Thanks



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351W is a small block based engine. 351C uses certain small block features such as mounts and bellhousing, But uses large port big block style heads. The 351M and 400M use big block mounts and bellhousings and are similar to big block 429 and 460 engines.



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Thanks Hoss, that helps!



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What is best head setup for circle track racing



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I really hate to be dumb but how can I tell the difference between a 351m and a 400m?,motor is out of 79 bronco 4X4 Thanks for any help



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