Okay guys here is my problem i have an h22 block (blown ring) and an un known f23a , Im wondering witch one to Build either g23 or h22? im Going boost on this on lookin for around 550 on pump gas i have the big turbo. etc etc.... and should i get any of these sleved if i dont have to.. This car is not a daily drivin car track only and maybe once every 2 months it will see that....

 

I'd go for the G23 build, from what I have seen of them, they are very nice engines, but I have only seen them all motor, so i'm not too sure of how they would do with boost. I'm sure they'll handle it like any other motor though. If you are going for the 550hp range, I would definately sleeve the motor.