Ok s ik the h22 and f22 from accord all match up but what about f20 c from the s2000? Ik this is probibly a dumb question but just wonder in be iv heard I can run f20c pistons in my h22

 

f20c and h22 share the same bore size...but with all the factors I believe it would actually result in less compression

 

Yea thats true but what I was getting at was would it fit in my prelude mounting wise and hook to my h22 trany

 

no, the F20c is more related to the K since they both spin the opposite way as F's and H's

 

which can be fixed by finding an acceptable rod/crank that'll make up for the differences in deck height.

 

^See this is something I've been so very curious about, mainly because the S2K pistons are forged and compatible with FRM. Is there already an appropriate thread to elaborate more on this or has it not been discussed?

Wondering cause I got a F20c block just sitting in the corner at work with a spun rod bearing but pistons are good.

 

if you have a h22 motor and a h22 tranny why would they not hook-up? What does having f20c pistons in your h22 have to do with the trans mounting? Doesn't make since at all, and you say thats what you were getting at. If I were you I would look at some diagrams on the basic functions of how a motor and trans work. Not trying to be a dick but just saying.

 

Not to be a dick but I ment the h and f series engines are the same but the f20c (s2000) now ik doesnt hook to my h22trany

 

Sorry but with how illiterate your writing is it is just painful to read. I cant seem to grasp what your talking about. What doesn't hook to your h22 trans?

 

The f20c piston has a shorter compression height than the h22 piston, which is why you will lose compression; the piston will be sitting farther down the bore at tdc. As mentioned, don't forgot the f20c spins the opposite way (clockwise), so supposedly you flip the piston around (intake/exhaust sides) if you use them. While I highly doubt the f20c is even remotely close to bolt-in to the h22 trans, you still have the problem of them spinning the opposite directions...