I have a 1992 Olds 98 with a series 1 supercharged engine. The engine in the car needs a complete rebuild or replacement. Does anyone know how difficult it would be for me to install a series 2 supercharged engine in this car and if any modifications would be necessary to make the engine fit and work properly? I'm assuming that I would need the computer and accessories that go with a series 2 engine. I'm also thinking that I will need to change the exhaust a little. Anything else? All advice is appreciated. Thanks! -Mike

A member here, Spiral, did a successful Series 2 swap in an older gen. Bonnie. It can be done.

From what I have gathered from him, the engine should mount up the same. For the computer, I believe he had his done custom. For the Bonnevilles there was talk about using a 96 computer because it had the engine/tranny combo, but not sure if this was proven to work. Engine harness would also be necessary and other misc parts. I'll be looking into this myself for my 93 SSEi. What is wrong with your engine?

My engine has extremely worn main bearings, uneven compression on a few cylinders, and one leaking exhaust valve. I purchased the car cheap because it had a trashed supercharger. The supercharger bearing was so bad that the serpentine belt would not stay on the supercharger pulley. Anyway, I put a rebuilt SC on it and found out the engine was junk. So much for getting the car CHEAP!! The car does have a new transmission, fuel injectors, brakes, etc so I wouldn't mind rebuilding or putting in a low mileage used engine. I thought about trying to put in a Series 2 because it seems like there are more performance parts available for those engines. It sounds like it might cost me more to install a series 2 than it would to do a performance rebuild on my series 1.