question about pistons

[carcollectorkid]

okay so i am totally rebuilding my H before i put it in. its a H22A and i am wondering if i buy a h22a1 motor rebuild kit with pistons and the works, will i than make the power of a h22a1 or will it still have the power that the h22a has. because i know there is a small difference in power. if there is i guess ill just use the old stock h22a pistons.

[Jonas]

you have a jdm h22a that you are rebuilding? it has higher compression than the usdm h22a1. the usdm spec rebuild pistons will probably give you 10:1 compression instead of 10.6:1. you will lose a little power, yes.

you could always look into some mahle gold series forged pistons and raise the compression further... itll help you make more power.

[wherm]

I read good things about the Mahle pistons working well with the H motors. If you're rebuilding, I'd spend the money on aftermarket pistons. That's the time to do it.

[N9netwoAccord]

I read good things about the Mahle pistons working well with the H motors. If you're rebuilding, I'd spend the money on aftermarket pistons. That's the time to do it.

he'd be forced to use the Mahle pistons, because the H22 blocks are built with FRM sleeves, and in order to run forged pistons you need to sleeve it.

[Jonas]

mahle is one of the only brands that makes FRM compatible pistons. other forged pistons require a resleeve. i heard that jun and cosworth make them too but i havent confirmed it

[carcollectorkid]

i would do that but i dont want to resleeve the block. im trying to make it a simple cheaper rebuild. is there any place around that sells new jdm h pistons.