Six cylinder to V8 swap and the three speed manual trans

[Nevada51]

I’m exploring the possibility of swapping out my stock six cylinder block for a small block V8 in my ‘64 C10. A small block seems like a relatively easy, budget conscious swap. Two or three questions:
1) can I use my stock three on the tree manual trans, and if so, is it a matter of having the right bellhousing and it should all bolt up fine? I assume a new clutch would also be required?
2) were the brakes the same in the six vs the v8? FWIW my ‘64 is a stock, base model if that makes any difference.

Thanks in advance.
Cam

[karlbenz]

I swapped my 6 for an 8 many years ago. Pretty sure it all bolted up. Brakes are the same. get them adjusted and bled well they should be fine

[theastronaut]

If its a 230 or 250 then the engine mounts the same and bolts to the trans no problem. If its a 292 you'll need to find a passenger side mount. The throttle linkage arm on a V8 is taller than on a 6, I cut mine and lengthened it to match the V8 height. Engine harness is different but you can get a reproduction harness. You'll need a V8 sized radiator and a fan shroud since the V8 is shorter and the stock fan will be too far away from the radiator, or swap to an electric fan from an HHR.

http://www.66c10.com/electric-fan/

[Nevada51]

That’s great, thank you both - I didn’t realise the engine mounts were the same on those engines, so that’s even better. Stupid question, but do I need a new bellhousing?

[theastronaut]

The same bellhousing is used on V8 and 230/250/292 inline 6s. You can reuse your flywheel and clutch as well. When I bought my old '66 with a 250 it had just had a new clutch installed and I transferred it over to the 283 I swapped in.