my question is what engines will swap in to my 89 si with not too much fabrication. if it is any help the chassis is b4a and the current enging is a b20a5. i've heard from friends about swapping a b20b, or h22. are there any other engines i should research into? please give strait up answers i dont wanna hear about how bad the 3rd gen prelude is. any help will be greatly appriciated.

 

A3 or A5 is your most likely choice

I first hand have not seen any H22 3rd gens. but i've seen pics....It's a tight fit inside there so you would prolly have to cut away.

 

Also you can check out the other variations in the older Accords

Or the B21 of the later Preludes (90,91)

 

What mods do you plan on doing to the new engine? Im a fan of turbocharged b-18c1.

 

Theres plenty of room for a B18 in there. I swapped a B18C in with a fair amount of fabrication to motor mounts, etc. Took me roughly a month to get it all set. It IS possible and there is another guy here with a B18 in his 3rd gen. He helped alot during the swap.