is there a difference in the h22 and h23 crank shaft other than the crank bolt being bigger? can i use h23 pistons rods and h23 rod bearings with h22 crank?

thanks

 

there is a difference between the h22 and h23 crank. the h22 has a stroke of 90.7 while the h23 has a stroke of 95. you have to math the rods with what ever crank you are using or you will not reach proper deck height. though you can use h23 pistons in and h22 motor and h22 pistons in a h23 it just changes your compression alittle.

 

Not sure about the crank bolt being larger but the H23 crank has a longer stroke. I don't think you can put H23 rods and pistons on an H22 crank because of clearance issues. It might be too close to hitting the valves.

The H23 crank is not as well balanced as the H22 crank so it is not as tolerant of higher revving as the H22 crank.

Can someone confirm this??

 

not sure if they are interchangable or not, but the stroke is different. the h22 has a 90.7mm stroke vs the 95mm stroke of the h23. are you wanting to put a h22 crank in your h23 block?

now you get into deck height and rod length problems. i dont know the exact specs on them, but ill bet the h23 has a shorter rod due to the longer stroke. so given deck height being the same on h23 and h22 blocks, with a shorter stroke and shorter rod, your compression ratio will be lowered with this configuration. in order for you to keep the same CR with a shorter stroke, you need a longer rod (h22) given deck height is the same that is.

maybe someone with exact specs could be of more help though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AndyD &raquo;</TD></TR><TR><TD CLASS="quote">
The H23 crank is not as well balanced as the H22 crank so it is not as tolerant of higher revving as the H22 crank.</TD></TR></TABLE>

the h23 crank is probably balanced to the same extend of the h22 but a stroke of 95mm is just huge and the loads put on the bearings are enormus when you start spining that thing faster that it was designed for.

the specs on the rods are

5.636in * 25.4 = 143.154mm h22
5.580in * 25.4 = 141.732mm h23

you will not reach proper deck height. as i said b4 match your rodes with the crank, or deack your block

 

Is is possible to swap an H23 crank and rods into an H22A4 block ??

 

it depends on what year the h22a4 block is, if it is a 98+ block then no you can't swap them because the 98+ has the 55m crank mains. but if it is a 97 or below h22a4 then yess you can swap the crank and rods in because the h23a1 crank has 50mm crank journals, and so would the 97 and below A4 blocks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by prelittlelude &raquo;</TD></TR><TR><TD CLASS="quote">it depends on what year the h22a4 block is, if it is a 98+ block then no you can't swap them because the 98+ has the 55m crank mains. but if it is a 97 or below h22a4 then yess you can swap the crank and rods in because the h23a1 crank has 50mm crank journals, and so would the 97 and below A4 blocks</TD></TR></TABLE>

 

Here: https://honda-tech.com/zerothread?id=647731

 

The H23's a bigger stroke, the H23's not as well balanced from the factory as the H22, they are both made from the same process, The H22 has bigger counterweights, and the H22 has a bigger gland bolt.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LudeyKrus &raquo;</TD></TR><TR><TD CLASS="quote">The H23's a bigger stroke, the H23's not as well balanced from the factory as the H22, they are both made from the same process, The H22 has bigger counterweights, and the H22 has a bigger gland bolt. </TD></TR></TABLE>

AHEM.. and the 98+ h22 crank has 55mm mains. very important to remeber this

 

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

AHEM.. and the 98+ h22 crank has 55mm mains. very important to remeber this</TD></TR></TABLE>

Whoops! Forgot that, please forgive me!

 

This seems like a good place to ask. Is the F22 crank from a 1990 Accord EX motor the same as the H23 crank?? I thought it is but I am not sure if the F22 crank from the 90-93 Accords is the same as the 94-97 Accords.

Thanks


Modified by AndyD at 3:45 PM 1/27/2004

 

Indeed it is..

 

oops, I meant to say a 1990 Accord EX motor.

 

yes they are the same,

 

It sounds like i'd be better off staying with an H22 crank. Everyone is saying the 98+ have 5mm wider mains...I'm assuming the blocks are differant as well then since the mains are wider..?? I have both a 97 and 98 blocks. The 98 was a rebuild I picked up cheap... The 97 is the original motor from the car. It has a spun rod bearing. Which Cranks would fit in the 97 block. 92-97's ?? Are the cranks from the closed deck blocks the same ??

 

the 93-97 usdm vtec cranks are all the same part number. and just alittle thought, even though you "think" you have a 1998 motor that may not be true, if the car was made in 98 then most likely you have a motor from 1997, its tricky, best way to tell is to open the motor up and measure with a millimeter ruler.

 

Thanx Prelittlelude,

That was the exact responce I was looking for !! Anyone have one for sale ??