Does anybody know a good website which offers aftermarket or replacement parts for a 1987 Coupe Gt I cant find anything?

 

What specific parts are you looking for, perfromance, or repair?

 

I am looking for both performance and replacement. I am actually looking for a driver side fender and door. Also I want to do a motor swap, what is the best and fairly easy motor to use?

 

Where are you located?
Body panel wise,
There's some great places to get pretty much everything for these cars on both coasts here in the states.

On the east coast theres, Shokan, and force5auto.com
On the west coast there's a ton of parts places, notably 2bennett

As far as engines go, you can go with the stock units, or carry out a swap for a turbocharged engine from a 5000 turbo. This is a very popular upgrade. These 10vt's will get you just under 300 HP, with not a lot of work involved.

As far as maintenance parts are concerned, many local auto parts stores carry the standard stuff. Brakes, radiators, starters..etc. etc.

Performance wise for the stock engine, 2 Bennett, blau parts, and a few others offer what very little there is for these cars.
Ususally cams, ported/polished heads, with larger valves, etc.
This won't get you a ton more power. Best bang for the buck is the aforementioned MC engine.