LSA Supercharged
 

Hello, I am considering purchasing a LSA crate motor with a 4L85E transmission for my "68 GTO and was wondering if anyone has installed a 4L85E in a GM A-body car, was wondering if it will fit in tunnel without major fabrication?
Thank you,
Tom

My two bits on it is the trans cooler line location changes depending on the year of the 80e. On some of the swaps certain years are better for the cooler line access.

I think the 68 up tunnels have more room than the 64-67 with the A body so I am pretty sure you will have minimal clearance issues. They really are not much bigger than a th400 in certain ways.