I blew up my engine (12A) and now im looking to put a 13B from a 2nd gen (86 to be exact) into my 1st gen. Is the wiring harness on the 2nd gen a pain to get off? Can you tell me any other problems i'll run into?

 

Well, first you might try searching the forum for these kind of swaps because they have been done before. If you are speaking of dropping in a 13B with harness then you will need to bring over the coils as well. Might want to swap out the driveline as well but the 1st gen stuff will work.