will a centerforce clutch for an 89 fit on an 87. they are both turbo by the way

 

yes... they are the same clutch.

 

I thought you would also have to use the flywheel from the same year. Not totally sure on this, my brain might be mixing signals up.

 

Have you used the Centerforce yet? If not, return it.

 

centerforce = garbage.

That said, if you MUST use that clutch, yes, it will fit, there's no flywheel issues that I know of. I'm using an s5 clutch in my s4 right now, and it works JUST fine.

 

only the dual friction centreforce is garage... their stage I and stage II are great clutches.

and yes you have to use the corresponding flywheel for the motor.

S4 flywheel for S4 car.
S5 flywheel for S5 car.

but the clutches are the same. Same dowel location and same diamter.