The Stovebolt Site Forums The Shop Area Driveline 4 speed trans question

Hello, I'm planning to swap my 235 out for a 327 in my 61 c-10. My question is will my original 4 speed work with the small block? Years ago I did the same swap in a 58 with the same 235 4 speed setup and if I remember correctly the input shaft was a little too long and I couldn't get it in gear because the splined part of the input shaft was up against the rear of the crankshaft. I don't know if they had the same transmissions. Hope someone with more knowledge can answer this, I'd like to keep the four speed. Thanks for any help.

Transmissions are the same, only difference is the bellhousing.

When you change out the bellhousing, measure your transmission front bearing plate diameter. Make sure the bellhousing has the same diamteter hole so the plate fits snug. This will keep you from buying the wrong bellhousing. I believe you'll need one of these cast number bellhousing: 3815891 (smaller opening) or 3925505 (5 1/8" opening). If you can't find a bellhousing, I can help you.

Hello, I bought a bell housing a while back from a member here. I knew the 235 wouldn't work, been there done that, and to further complicate things mine has the hydraulic clutch, so it had to be a v8 bell housing with the hydraulic clutch. I'll have to check the numbers to make sure. I just didn't know if the transmission shaft was longer for the six than the v8, which really wouldn't make much sense. It's been too long ago that I did that swap I can't remember exactly what the problem was. Thanks for your replies.