Originally Posted by 5hift
There's no way I'm arguing with Boom. From what I read and heard from people who have done it, it's ~20hp more than the H22, so i might be 210-220, but if Boom says it's not, I'd listen to him.
clarification, due to the close displacements here. i think it is feasible to assume an h22a head could turn an additional 40HP or so over the h23a1.
however if the engine makes 220 with the h22a head and h23a1 block, that means it gained 60 HP from the head alone.
not to mention the h23a1 has lower compression.
so i dont see it possible for a h23a1 + h22a head to make a large amount (if any) over the stock h22a. definitely not 60 HP.
~boom