c6 questions
New User
Joined: Mar 2011
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I was recommended the ford shift kit for my 74 f250 c6 not a launch at high revs but nice firm shifts
Post Fiend
Joined: Dec 2007
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From: Lost
As far as I know, the only item that could come into play is the pilot hole diameter.
I think the SB/BB convertor uses the same flexplate bolt pattern, but they *can* have different pilot hole size, depending on year.
The center snout of the TC goes into the center of the crank, like the input shaft of a manual trans.
I think the SB/BB convertor uses the same flexplate bolt pattern, but they *can* have different pilot hole size, depending on year.
The center snout of the TC goes into the center of the crank, like the input shaft of a manual trans.
Post Fiend
Joined: Dec 2007
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From: Lost
No, it's just that every aftermarket TC I have ever seen is listed by pilot diameter, not engine size......
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Junior User
Joined: Jan 2011
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thats why i was thinking they would interchange, how would i find out what my pilot shaft diameter is? its a c6 out of an 82 ford f150 behind a 351w
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Post Fiend
Joined: Dec 2007
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From: Lost
I guess you could try looking for the pilot bushing used for a manual trans, for both engine sizes/years, and see if the book calls for the part number.
351W is small block pattern, 351M is big block pattern. 82 could have been either, from what I have been told......
351W is small block pattern, 351M is big block pattern. 82 could have been either, from what I have been told......
Post Fiend
Joined: Dec 2007
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From: Lost
What engine are you wanting to use this TC behind? If all esle fails, measure the diameter of the pilot on the TC, and the hole in the crank, then compare the flexplate bolt holes and TC studs for distance.
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Junior User
Joined: Jan 2011
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I have a pretty well built 357 I want this trans behind estimating 450 to 500 horse, I was just hoping I could order some parts before I drop this trans
Post Fiend
Joined: Dec 2007
Posts: 8,521
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From: Lost
By 357, I'm guessing it's stroked small block? If so, the 351W TC should fit fine. But, for that HP level, you might be better off getting a little higher stall speed convertor, that's made to handle the higher HP engines.
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Junior User
Joined: Jan 2011
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That's what the plan is, not a stroker but a 351w bored .030 over, thumpr cam, fully balanced, blueprinted, world product heads etc... I'm looking for a 2500-2800 stall as well as something to give me firm shifts, and any other goodies for this trans so I don't blow it up.