can you tell me

can somebody tell me the engine code on a 1991 Honda Prelude SI S.0
it is carb

I heard it was a b20a something but I dont know

also it is SOHC if that helps

do any of you guys know

it's the b20a3 i believe. there should be an engravement located on the block of the engine towards the front to the left of the header. you should be able to see it if you take a look under the hood.

is there any head that can be swap on this block to make it alot faster