427 tall deck in a 1979 K25 GMC
 

I'm in the process of rebuilding a 427 tall deck to put in my K25. I am trying to find out if I can use the 13" clutch assembly and flywheel out of the C70. Also is there a dual plane low rise intake for the tall decks, so I don't have to use the spacers. And will the radiator out of a 2 ton fit in my truck. Also header fitment. The truck will be used to pull a stock trailer and as a wood truck. So the setup should work good as long as everything fits.

Re: 427 tall deck in a 1979 K25 GMC
 

The core supports in the c70's etc. are almost identical and the radiators are the same width, BUT the big c series radiators are a few inches taller and possibly thicker. You could probably shoehorn one in but you may not gain enough to make it worth it.
Wish I could help you on the rest but I don't have any experience in those situations.

Re: 427 tall deck in a 1979 K25 GMC
 

I'm asking about the radiator because the in my truck is leaking where a seam split. the truck I pulled the motor out of has a new 3 core aluminum radiator in it, and I can get it for 50 dollars.

Re: 427 tall deck in a 1979 K25 GMC
 

Take a few measurements of that radiator and go from there then, only way of knowing for sure.