Hey guys, new around here, anywayz i'm building a H23 Vtec, now before you guys try to say go get h22 its cheaper.... , you may be right. but i already had a h22 head and a blown h23 motor.

i have a few questions though. i was wondering if any f series intake manifold will mate with the h22 head... need to know asap thanks, and ill be posting pics

also here's a list of parts i already acquired
h23 block honed and polished exterior
h22 head rebuild
h22a type S piston
h22a type S rods
oil feed line
h22a headers... cheap lol.
h22a water pump
h22a timing belt
Eg harness modded

 

I'am more than sure that you cant fit an f-series intake manifold on to the h22 head. I might be wrong but I have never hurd of it done. your pistons will stick out the cylinders because they have taller compression height than h23 pistons. Check this link out........
http://www.************.com/forums/s...d.php?t=309379

 

thats ************

 

Yup F Series IM will not bolt up; otherwise, F Series guys would've done H Series IM swap like mad. Lol.

 

what do you suggest i do to fix the piston sticking out the block problem

 

IS THE H22 HEAD BETTER THAN THE H23 HEAD ??? JUST ASKING CZ MAYBE YOU CHANGED IT LMK

 

mock up of the motor

 

yea h22 head allows you to rev higher than the non vtec h23 and also produces approximately 20 to 30 horse power more than its non vtec counter part...

 

In regards to the pistons fitting the block issue, use the Zeal Auto compression calculator, to see which pistons, rods, crank combo you can use to hit your goals and make a safe engine. If someone else is building it for you, I would get their input as well.

With what I put in, assuming you plan to use an h23 crank, it gives you a 14.47:1 compression! With an H22 crank, it goes down to 10.85:1 though.

 

But a stock H23 block can't handle 7500 RPM, and those H22-S pistons are on the heavy side

 

thanks for the info bro....

I'm building it at home in the garage, i have all the tools necessary
and you are right lol.. was planning on using h23 crank for extra .1 stroke, but
i guess not now..

but thanks though man i really appreciate it.

 

your right invader, but if u add oil squirters then it should be fine....

i maybe wrong thou

 

Newbs are out of control these days......
I wonder how many of them actually try and succeed building a motor.....haha!!!
H22 rods/Piston with 95mm crank......

 

glad u feel that way about newbies bro....

but i might be new to the forum but not new to building motors..

 

thanks but i meant the h23vtec head .. is it better than the h22 ?

 

For that question, read through the thread on the "mysteries of the blue top" that ESP.net started. But for what most of us know, they are the same head.

For the H23 crank spinning to 7500, I think it is more important to have the oil at the crank, than on the pistons, which is where the squirters send it. In my build, I didn't use the squirters, and I deleted the balance shafts properly, to increase oil pressure to the crank.

 

hey snobordboi, should i use the h23 crank or h22?

i put a piston in da block today n it came out stuck out like .01mm
so i was just wondering if that's safe or not, need this motor bk together
soon...