ken2830

Is it possible to put an H22a Head on a F20b Block?Has anyone seen it done and would I have to use the H22 Head Gasket??

22_42r_eg

gotta use the f20b headgasket. good luck finding one though.

ken2830

yea thats the problem. But Ive seen that the F22 and F20 have about the same bore i believe. so an F22 gasket may work,but would it seal good on the H22a head,it being bigger?

holymoses89

f22 hed gasket wont work

jr_deleon

iTrader: (1)

http://www.autodynamics-honda.com/hopcbcyhega.html


There it is. I've purchased them but through complete head sets. they sell them individually, but they dont stock them they'd have to order them. And i sold one of them in April.

93cb7colorado

dont forget to look at timing gears and h2o and oil pump and lower crank gear they might not be the same. I am doing a h23 frank vtec

holymoses89

you know what thats true you have to change the timing belt use a h22 oil pump water pump its alot of work

jr_deleon

iTrader: (1)

Hold on guys. You dont have to change the oil pump unless its going into an OBD2 chassis (F20Bs have no provisions to mount a crank sensor). The lower timing gear is not different, neither is the water pump (ask me how i know, i have a built high comp F20B) The F20B uses a 156 tooth timing belt, the H22 uses a 155 tooth. However, you can use an H22 timing belt on it (even if you are putting the H22 belt on an F20B motor it just fits tight) but since you'd be using an H22 head and cams the belt goes on, just not as tight. The crank gear is not different either. So basically in a nutshell if you get an F20B head gasket you need NOTHING else to make it happen. Its been done before. As a matter of fact i will pull up a thread of an individual who actually used an H22 head on an F20B block that is sleeved, built, and is turbo.

It seems as if none of you have actually torn one of these guys down. otherwise you'll see what im talking about

jr_deleon

iTrader: (1)

For those that dont know, here is his site. He is also on Honda tech to verify this.

http://www.preluderacing.com/

more information
https://honda-tech.com/forums/showth...light=f20b+faq

ken2830, all you need is the F20B head gasket.

93cb7colorado

did not know this just thought I would throw that out so that he dont screw up his new motor. I check all this out on mine first. Thanks