H22/H23 hybrid...

[whitecoupe91]

H22 block with an H23 head. It should have higher compression right? Would the piston to valve clearance be fine if I used the H23 crank. Has any one ever tried this setup? If your going to ask why, I have an extra H22 complete block and a complete H23 that needs new rings. So why not try it!!!!

[d112crzy]

Yes, compression would be higher than that of an H22 due to the H23 head having a smaller combustion chamber(50cc vs 53.5cc) You' have to measure the valve clearance to be sure, I think you'll be alright.

With a complete H22 bottom end, you're compression would jump to a tad over 11.1:1. This would essentially make it an non vtec h22, or a high compression and destroked h23. I like non vtec h22 personally, lol. H23 crank/H23 rods/H22 pistons would bump up the compression to 12.4:1.

That would be if you were using JDM H22A pistons(non type s). If you were to use USDM H22 pistons, the compression would drop about .8 of a point from either combo.

Either combo would make for a killer H23 build. Personally, I'd go for the H23 crank/rod combo. I'd use a thicker headgasket to bring the compression to an even 12:1 and you'd also give you more p2v clearance and would also give you room to upgrade to bigger cams in the future.

Do it

[whitecoupe91]

Cool. This is for my lady's lude! I have jdm h22a pistons. That sounds great about the compression. I think I will go the h23 crank and rods, h22 pistons. With the normal I-H-E mods should be a fun car.

[whitecoupe91]

Being stock internals, kind of, do you think it would run fine with the stock ecu or should a chipped ecu be in order?

[d112crzy]

A tuned(chipped) ecu would DEFINITELY be in order.

[visualpoet]

CORY!!!!! Welcome back brother! Glad to see you're still alive and well out there in z-ville!

[whitecoupe91]

What's happening John! Yeah we're all still doing great! I'll have to post pics of my lady's lude, it's definently girlie lol!!

[wed3k]

I like non vtec h22 personally, lol.

i love you.

[bjaccord]

I love my non vtec h22. Numbers are in my sig.

L8r