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need help picking motor. h22a4 (bad sleeve damage) H22a or H23a will be FI
okay so I bought a 2001 lude knowing it needed some work. turns out piston 3 has a chunk out of it. there is a 1/2" hole on the side where the rings are. the piston wall (sleeve?) at that location got a chunk taken out of it as well. it also looks like there was a deposite of some sort left on the cylinder wall, almost like hot metal dried to it. it's possible that the chunk out of the sleeve ended up on the sleeve if that makes sense, so there's a divet and a deposite. it is a turbo setup that never had any internal work. big giant turbo..gt35?.. I'm unfamiliar with turbo sizing, but it's physically a large *** turbo... okay so I want to keep the turbo system but don't know what to do about my block it's going to be a pain in the *** to find someone confident enough to bore it out past the damage . I would then get Mahle gold pistons and that would be route one. route two is a h23a1 that I know nothing about but I can have for $200. route 3 is a jdm h22a that I also know nothing about. also $200. I have some money put aside for this but hoping to not have to go darton sleeves/forged Pistons route. but I suppose I could/would if necessary. please don't flame me, this is a very real choice that I need to make and am looking for sound advice. I've been cleaning up and primer-ing my engine bay putting off making this decision. please help me... P.S. wtf happened in the motor to have a blowout like that?
Re: need help picking motor. h22a4 (bad sleeve damage) H22a or H23a will be FI
At the very least, I can tell you that you do not want to try boring out your current block. It should've been sleeved to begin with if it was going turbo.
H series have special FRM lined cylinder walls. even the JDM models. Work great for the stock system, absolutely not for forged internals, or boost.
You can only hone/bore these out by 0.25, past that and the entire FRM liner is gone, which is a bad thing.
An H22 can be bored out to 89mm, making it a 2.3L, as long as it has proper sleeves.
H22 has VTEC, H23 does not. H22 also has a better flowing head than the H23.