My engine blew the hg about 2 weeks ago. Upon tear down we discovered many signs of incompetence from the original builder. I will go further on that once we get everything settled and some pics.

My question right now is, it looks like a re-hone will not cut it with the clearence issues. Looks like i will have to re-bore it. I has a h23 with GE sleeves with stock bore. How far can i bore it to untill i would have to worry about wall thinknesses? Is 2.5l h23 asking too much?

 

IMO, I would go no bigger than 89mm if this is a street car. Any bigger can result in cylinder distortion due to thinner walls, and head gasket sealing issues.

 

89mm GE sleeved H22A4

you CAN go as big as 90mm

 

Yea im still trying ot keep this car streetable. I dont want the chance of getting the walls too thin. Also liek to leav sumthin there for the future....in case shiit happens, again.

What displacement does a 89mm bore make it?

 

89mm bore
95mm stroke
= 2364.1 ltr

 

2.3xxx i think, i dont know, i never actually calculated the displacement, i didn't really plan on going to 89mm but they were the only pistons i could find on short notice, plus i got a deal on them

 

Hmm. I think i might just bore it as little as ill need to. Seems liek the power increase is negligible...nuthin a little more boost wont handle. And id like to have sumthin there for the future.

 

89mm sleeved H22A4 - 2258cc

 

honestly i wouldnt go all the way to a 89mm in case you run into problems down the road. Go about 40 over (88mm) that way if you f your walls up later you can move up to a 50 over piston and so on and so on. Be on the safe side.