What motors will fit in my 1999 Pontiac Bonneville SSEi? For example will any 3.8 litre engine fit?

Question

3.8 litre engine is seized.

Answer 1

you have a 3.8l now, its just supercharged. both the 3.8 and 3.8 supercharged will fit. i think even the smaller 3.4l will fit too, but you would need a new pcm.

Answer 2

You can go to a junk yard or get a crate engine and put that in your car but you just have to make shore that its the right engine. Your car has the gen 2 3.8L so don't confuse it with the gen1 3.8L engine because the wiring harness and the computer is different. check out the Internet their might be a shop that will do this kind of work.

Answer 3

YEs