1951 GMC w/ 1989 6BT

[75Dodge]

So I came upon a real deal with a 1951 GMC pickup. I was on it's way being restored and the owner lost interest. It is riding on a 1971 Chevy 1/2 ton chassis. Came with a couple of 4-bolt 350's and a freshly rebuilt 700R4.

I was wondering what anyone thinks about doing this. I understand that the 6bt is significantly heavier than the original I-6, but they are roughly the same dimensions.

My reasons for using a 6BT is that I would basically be butchering my d-250 for the powertrain and I wouldn't have to buy a new engine. But I would swap in a 5-speed manual.

Do you think I would be better off with a 4BT?

I want it to be diesel powered.

[oldestof11]

After working in my Suburban (not finished) I wish I had a 4bt. Smaller and more easily adaptable to a Chevy. Reason? They came with Turbo 400's and motor adapters! But you do what YOU want.

The difference between the 1/2, 3/4, and 1 ton is the number of cross members and front suspension from what I am told....

[75Dodge]

Yeah that was what I was thinking. Easier to package, lighter weight, don't need to make as many modifications...

How far along is your conversion?