Hi everyone just picked up a really clean 97 sse 40th ann edition dirt cheap with a bad tranny. Was wondering if a ser 2 supercharged engine will drop in without any mods since i have to pull out the motor anyway with the trans. Thanks will post pics tomorrow.

As long as it'* the same year you just drop it in. If it'* a different year you may need the wire harness and PCM

A different harness and pcm are not needed. You can add to your harness and reprogram the pcm. I've found this out to be an easier method from having done a few swaps.

The 96-99 Bonnevilles all had the same motor and bracketry to the average observer and would all drop in w/o much work at all.

Any Series 2 motor will go in easily if you swap the alternator and it'* bracket, AC bracket and the rear exhaust manifold with your existing ones. The coil packs and bracket/tensioner would need to be from an SSEi 96-03.

Wiring wise you would need a wiring kit available from Intense-Racing or ZZP for about $25-$30.

Your pcm would need to be reprogrammed for the supercharged tables etc with the correct transmission gear ratio.

Your transmission would be a weak point, but an output shaft, differential, diff cover and different passenger axle would turn yours into an HD version.

Tada..you would have a full supercharged car as it would have come from the factory if it had been made that way.

That'* all well and good if he has access to or has a tuner. If not, changing the PCM that comes with the motor is easier.

No, it'* not. The SC vehicle has a fuel pump module that the NA doesn't among some other items. This would kick on a few different DTC lights if not programmed properly. Dropping in a different pcm will also have a different VIN#, w/o knowing what state he'* in and it'* emissions laws, it would be hasty to not warn about the potential for emissions/state law issues by showing up with the wrong vin in the pcm.

This is starting to look like a tennis match, my necks getting tired going back and forth. I see alot of good info floating here, and when the kinks iron out, somebody want to make a "How To" thread. please?

You bring up a good point Bill. I had not thought about the vin. In both cases he will need a tuner. Unless he gets a programed PCM with a performance tune. The vin can be set at that time. In both cases the PCM would need to be dealt with.

I just realized what a rookie i am. ALL of that was completely over my head.LOLOL

We all have to start at the rookie point. In time it gets better. I think one point that was made here is, if your going to do much more then simple mods a tuner is the best money you can spend.

I got the basics, I just get lost when you guys start usin all the acronyms, DTC, PCM and what not.LOL