Wbodystore also has parts for us, as well as grandprixstore. No, the 96 engine is largely incompatible with your Series 1.
Your engine was only used from 92-94 in Bonnevilles, and 91-95 in Buick/Olds (assuming you have an L27 as we suspect). You have the Series 1. There are a few things from those sites that will work, but they are pretty much the basics. Oil filters, lifters, some pulleys, plugs and wires, etc.
It would help a ton if:
1. We can solve the riddle of your engine.
2. We know your budget.
3. We know your goals.
Just about anything you'd want is available, but some thing are a bit costly. There are other things you can DIY for an extra kick in the pants as well.