Recently Ive been checking out prices for these two engines and they both come about the same price for the both swaps(the b18ls and d16z6. Here local cost about 600 bucks. But the question i was asking was which motor is better in turbo with stock internals?? I did some research already and came out that the ls is better becuase of the stock compression ration. But havent found information for the d16z6 yet. Sorry for the lack of knowledge. Help is appreciated.