I have searched on here and keep seeing that the h22 and h23 cylinder head exhaust flanges are different. But if they are so different why do most shops just sell the H series manifold and not anything for the h23 or just the h22. The just put them together. Also I have heard and seen that you can use the h23 manifold on a f22 cylinder is this true and if so are any changes i have to make

 

Because the h23 does not have as much market potential as the h22 does.

Go into the FAQ's in the prelude forum and there's a thread explaining all of this for you:

https://honda-tech.com/zerothread/689805

 

thanks......

 

cant find the post about the head differences. can anyone point in the right place

 

You need a f series (F22Ax) head flange.

H22, nor the f22bx flange will work.

You are welcome.

 

i can vouch that h23 and h22 head flanges are different. know from experiance

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by supergenius &raquo;</TD></TR><TR><TD CLASS="quote">You need a f series (F22Ax) head flange.

H22, nor the f22bx flange will work.

You are welcome.</TD></TR></TABLE>

I'm not positive but I believe the h23a1 and the f22b1 both can share the same manifold as far as the exhaust flange goes. I've seen people run a manifold meant for one, on the other, I see no difference. But if I'm wrong then please correct me!

 

YOU ARE WRONG.

JESUS guys


f22bx O OO O

f22ax/H23 O O O O (H22 will not work)

End

 

ok so the f23 that comes in the 94 accords has the same manifold flange as a h22. im asking cause im boosting my f22 then when im done that kits going on my h23/h22 hybrid.


Modified by racer034life at 1:57 PM 12/3/2007

 

just talk to the owner of lovefab he's emailing my pics of his h22 manifold and how there no different then the h23 and he said he builds them that way

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by racer034life &raquo;</TD></TR><TR><TD CLASS="quote">just talk to the owner of lovefab he's emailing my pics of his h22 manifold and how there no different then the h23 and he said he builds them that way</TD></TR></TABLE>

well then he's building them wrong if thats the case. bolt patterns are deffinately different.

 

He was saying that his manifold is made to fit both the h23 and h22....maybe it could be you tell him which motor your running and then he builds it to that spec. Also is there going to be any turbo manifold that bolts right up to the f22.

 

Cory knows better than that......

 

ok so how makes and manifold that will fit an h23 and a f22.....or is this in possible