66 gmc 454 swap
 

Hello I have a 1966 gmc c1000. It has zero motor or drivetrain. I have a 454 with a turbo 400 attached to it and I was wondering how difficult it would be to put in this truck? The truck originally had a 6 cylinder engine, will the 454 work with the same engine mounts? Or am I opening a can of worms I shouldn't be. I have access to a heated shop with a hoist. Any input is greatly appreciated!

Re: 66 gmc 454 swap
 

sir, i am sure you will have a nice job once you finish, but this group is dedicated to the preservation of the MIGHTY GMC V6! V8 chev. conversions are frounded upon here.

Re: 66 gmc 454 swap
 

In general, engine swaps are done by taking off front clip. Then placing motor into place to mock it up and check all kinds of clearance issues and solve them. Universal tubular cross members are available for motor and tranny (or perches for motor if you wish). Most any motor will physically fit a 60-66 GMC or Chevy truck. You won't be the first to put that in that. Mr. Matkin is correct, the website is for preservation, not radical modification into a hot rod, rat rod, etc. At least you are not taking out a V6.

Hope you will maintain the look of an original GMC. If you feel uncomfortable in discussing, then PM me and check internet for Chevy swaps. Almost the same chassis, in the engine bay, for a 66. The Chevy chassis had V8's in those years. It's not going to be real difficult to do the swap. You are half way there already.

Please do not post sideways pictures. Fix them on your computer, then attach.

Re: 66 gmc 454 swap
 

Ok my apologies, I will be keeping the truck as original as possible I just wanted to use the motor and tranny because it is free I'm cheap haha

Re: 66 gmc 454 swap
 

:thumbsup: