not much at all. Go for the H22. Or, if you have the funds, do the ultimate: H23/H22 frankenstein. My friend had this in his Del Sol. he was in SCC (sport compact car)MercyOnMySol said:Okay, I sold the Del Sol... and bought a 92 civic hb.. and I'm wondering.. how much trouble would it be to fit a b20 or possibly an h22?