can anyone tell me if the valves on the H22 are the same as the f20B valves? Sizing, clearances etc.

matt

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SiR-T &raquo;</TD></TR><TR><TD CLASS="quote">can anyone tell me if the valves on the H22 are the same as the f20B valves? Sizing, clearances etc.

matt </TD></TR></TABLE>

good question. Ask the prelude or allmotor guys.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point2 &raquo;</TD></TR><TR><TD CLASS="quote">

good question. Ask the prelude or allmotor guys.</TD></TR></TABLE>

Haha. Why ask such a question in a CRX forum?

 

yea i'll check the prelude section reason i ask is because alot of ppl are swapping to these engines so i wanted to get an idea from anyone here

 

Do a parts number search.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SVOboy &raquo;</TD></TR><TR><TD CLASS="quote">Do a parts number search.</TD></TR></TABLE>

If you can find part #'s for an F20B I'll fly to where you are and shake your hand.

 

Just call up europe,

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SVOboy &raquo;</TD></TR><TR><TD CLASS="quote">Just call up europe, </TD></TR></TABLE>

"no speaka da ing-ga-lish"

 

Yeah, I forgot the f20b was the euro sirII or whatev when I posted.

 

pardon my ignorance. but what is the BIG difference between the engines? there almost identical.

 

I'm pretty sure a good analogy would be d15b vtec to d16z6.

 

i remember reading the f20b valves are smaller than the h22.

ill look for it
-joseph

edit i found it
Quote, originally posted by PirateMcFred »
Oh you lucky bastard. Then I would recommend giving it a try and post pics and dyno plots. But I would definiately check for clearance. I would hazard a guess that since the F20B head is very similar to the H22 that you should not have any problems. Now I would just worry about spinning a 95mm crank to 7500 or more...

oh wait. i forgot that the F20 valves are smaller so the piston valve reliefs might be a little on the small side for the H22 valves but you can probably enlarge them. Just make sure you clay it to check clearance.

the Pirate

heres thee topic
https://honda-tech.com/zero...91591

 

There is A LOT of hardcore info on the H22 in the prelude section.. the FAQ is really good.

 

I read they worked swapable...from f20 to h22 head satan ran them I believe I read...and they were pure **** and dropped 3 of them seperate times...weak point? who knows....