Since my uncle gave me this 360 i've had the same problem, recognising what engine is this it, he says he changed the engine to a bigger one (2.0 to 2.3), but I insist he didn't.
I Think he wants to believe the opposite because he paid for the engine

Well i'd like to post a picture but the car isn't in my house, and the only photo i took of the engine got corrupted somehow.
theres a snapshot a video but it's not very clear, i will try to get a better picture asap.
By the way, its a 1985

(I Hope it's the original engine)