OK HERE IS MY QUESTION IM NEW ON THIS FORUM SO...
WELL MI QUESTION IS, I HAVE A 1995 HONDA PRELUDE WITH H22A1 STOCK MOTOR IM JUST WANT TO KNOW IF IS POSSIBLE TO USE H23 CRANK ON MY ENGINE AND WHAT KIN OF POWER CAN I GET OUT OF THAT THANKS AVERYONE

 

H22A1 mains = 50mm

H23 Crankshaft = 55mm mains

So ,no. Unless there is a certain H23 variant that used 50mm mains. There could be, but I don't know of one.

 

H23A1 is 50mm

 

Hmm. And here I was thinking H23 cranks were all 55mm mains. Well, you learn something new every day I guess. Thanks.

 

ok but is any order crank that i can use on h22a1 i mine mmm like f22 f23

 

H23 and f22 cranks are the same but some years came with a different size crank pulley bolt. Both can be swapped into a h22A1.

 

im been searching around and i get to the conclution that is possible change the h23 crank in to the h22a1 engine but what will be the different between my stock crank and the h23 crank and what can hp can i get

 

I have read on many occasions that the h23 crank is stronger than the h22s..although i have never seen an explanation as to why...

But from experience with friends the stock h23 crank should hold up to or around 400whp just fine. Start going over that and you might want to think about upgrading. one friend he made 500 on his and he didnt drive it all the time but it was only two months until it broke.

 

97 and up preludes/H22's have the 55mm mains (IE. H22A4)

 

you can use and h23a1 crank in an h22a1 block...it will boost your tq 10 more and hp maybe 10 also... if u want an h23a1 pm me.. i have one with fresh balance and micropolished for decent price

 

So in other words,

OBD1 H-series - 50mm mains,

ODB2 H-series = 55mm mains

Just trying to come up with a general rule.

 

For the h22, 98+ is 55mm mains, 97- is 50mm mains.

I don't have any first hand experience, but everything I've read indicates the h23 crank breaks much more frequently than the h22 crank. However, with the proper care, neither of these should be breaking on the street.

There's not really a good way to tell you how much power you can gain either, as that will be dependent on your supporting mods, how good the tune is, etc.

OP, I'm assuming you know you need to use the h23 rods with the h23 crank.

 

you would also need to use the h23 rods or f22 rods because the H is a 90.7 stroke and H and F' 23 has 95 mm stroke

 

but if i use the h23 or f22 rods on my h22 block with h23 crank, the pistons wont be to high or the valves will hit the piston

 

is not better if i use mi stock rods with h23 crank

 

--

 

im using an h23 crank with h22 rods...not only that, but with pro3 cams and a .030" gasket.

i also have a friends car i tuned using h23 crank, h22 rods and h22 pistons. Stock head. It's roughly 12.6:1 compression

 

Actually, it will be about 2mm higher and 2mm lower. But there are already several extensive threads on this combination. Check the FAQ.

 

mmmmm im confuse now jijijiji
well witch will be the best combination h22a1 with h23 crank and h22 rods or
h22a1 with h23 crank and h23 rods and what will be the different (sorry to ask so many questions but is better ask to do something guessing)

 

h22a1 block, h23a1 crank, h22 rods will give u a lil high compression to make more power. all you need to do is clay the motor just to make sure ur not hitting. or you can just grind the pockets a lil bit of the piston to make sure u have clearnance for sure

 

I stand corrected; previous post retracted.

 

the h22 cranks come balanced from honda nd the h23 cranks are not balanced. is this correct? i think i have read this somewhere, it sure rings a bell.

Im currently using an h23a1 crank in my h22a1 block. love it

 

false they are balanced

 

yea i wasnt sure, i think i just heard that somewhere. ive got an h23 crank in my hands an i dont see any drillin marks like it was balanced???

 

if it comes from the factory it is pretty much balanced well enough. if you get the crank from someone else its not sure what has been done so it it will be benefial to do it.