Bolt pattern diff's on transmissions
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Bolt pattern diff's on transmissions
I was helped with my 351 question, but I need to know the difference between a big block bolt patterns and small block on transmissions. I have a 4-speed manual trans if it helps with anyones answer.
77 Ford 3/4 ton
77 Ford 3/4 ton
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Bolt pattern diff's on transmissions
franklin2
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1. "RE: Help Me!"
23-Apr-01, 06:56 PM (EST)
I have never seen this myself but there is supposed to be a casting ledge behind the distributor on a 351m. The block is flat behind the distributor on a 351c. I reason this to be, because both engines use the same distributor, but the 351m has a taller deck (block) and a wider intake manifold. It stands to reason you would have to step the taller block down to use the same length distributor as the shorter block (351c).
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I pasted this from your question I answered from the other forum. If you know where the motor in question came from originally, this would also help in determining what type engine you have.
309 posts
Senior User
Non-member
1. "RE: Help Me!"
23-Apr-01, 06:56 PM (EST)
I have never seen this myself but there is supposed to be a casting ledge behind the distributor on a 351m. The block is flat behind the distributor on a 351c. I reason this to be, because both engines use the same distributor, but the 351m has a taller deck (block) and a wider intake manifold. It stands to reason you would have to step the taller block down to use the same length distributor as the shorter block (351c).
Remove | Alert Edit | Reply | Reply With Quote| Top
I pasted this from your question I answered from the other forum. If you know where the motor in question came from originally, this would also help in determining what type engine you have.
Tuned
Joined: Apr 2001
Posts: 443
Likes: 1
From: Athens, AL
Bolt pattern diff's on transmissions
yes, there is a difference....an easy way to check is to measure between the top 2 bolts for the bell housing....a sb is about 5 1/4", and a bb is about 7 1/2", and an FE is, of course, round
