First, please don't start by telling me how can I live with myself for putting a Chevy in a Pontiac. I'm going to do this because my 68 Pontiac Tempest has no real $$ value to me and I have a 454 around 600hp. This is a Marine 4 bolt block and I need to know what the known problems are. I understand the motor and trans mounts need changing. Also, the oil pan will likely hit the crossmember. I will likely use a TH400 and replace the rear end and driveshaft also.
I'm just looking for some good advice on known issues and how to deal with them. It still looks like a Pontiac
Bob