zombie408

Whats up honda-tech! I have a 91 integra db1 with a b18a1 engine and ls tranny. Ive gone through this forum as well as many others and cant find direct answers to questions that i have about swapping in a b20b block. I understand the essentials such as switching over my intake and exhaust manifolds, dizzy, alternator. This is the first swap im doing and i have specific questions that are relevant to this, such as:
-do i get intake and exhaust manifold gaskets for my b18 parts or for the block?
-what other parts do i need to swap over from the b18 to the b20?
-the b18 is OBD0 and im keeping it stock, so the harness wont change any advice?
-i heard im going to have to splice wires for the thermostat housing sensor to the harness? Same with fan switch.
-anything else i need to know?
thanks in advanced to anyone that can help me out.

Mrprofits213

you need the b18 fuel rail and injectors. And yes those two sensors will need the wires to be extend to plug them up. I'm not sure about the gaskets but I think they all identical and maybe any b series will do except the b engine from a prelude.

Mrprofits213

https://honda-tech.com/forums/acura-...-swap-2985941/

zombie408

yea im swapping the whole intake manifold and other parts associated over to b20b. And do you have an idea of what would be the best approach to extending the wires?

zombie408

thank you

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