which parts from 85 will work in 87

[ssleeper94]

I just got an 85 motor for free, which parts will work in my 87?

 

[WH1]

The heads, crank and pistons will work for certain. Most if not all accessories won't work. The block's a little different but can be drilled for the oil drain. If I were you I'd sell the accessories, modify the block and keep the rest as a backup motor. Block should also be a 20 bolt.