Thread: Someone stuffed a 3.8NA in a 3.4 car... now what?

Originally Posted by wmstecker

I'm going to pull the casting numbers tomorrow to find out the exact motor I have so I can get a PCM programmed to match. How detrimental is a top-swap on an engine that isn't designed to be supercharged? I'm not a performance guy, I'm just a fix-it, but somehow I forsee that engine having ring/valve issues if it was super'd like it is. (Unless, of course, it was originally supercharged, I guess the casting number will tell.)

It will take the boost fine if you do a little exhaust work, headers would be a good idea.

Originally Posted by EJOUIE

It will take the boost fine if you do a little exhaust work, headers would be a good idea.

Sweet deal! I am looking forward to giving this a try... now how to come up with a little extra hood clearance... hmmm....

Engine Bay