Swapping in a big block

Putting A big block into an A body is a big step up from when it was first engineered, mostly the increased weight in the front of the car and the increased torque you are going to subject the unibody too. Like Longgone said, consider the car as a whole package.

I'm planning on dropping a 400 and 727 into my Duster but before I do I'm making improvements in the other areas first such as BB radiator, 8.75 rear end with rear discs, frame connectors etc. I'n not worried about the torsion bars because i'm just racing the car right now but if you plan on driving on public streets you might want the bigger torsion bars that are used in the big block cars before bouncing over to many speed bumps. :read2: