The cam shaft and internal except for rods are different.Other than that they share the same bolt ons . Also there is something that i've just discovered when swaping in my d15b. There is a brace mount holes on the z6 that doesn't exist on the d15b. This brace is used to attach the tranny to the block. :shock: :shock:
with the clutch thing I can help. The splines on the clutch disc of one is like 21 and the other is 20. I think that the 92+ has like 20 splines, and the older ones have like 21 splines. But everything else works with a little modification.