Aw do, does anyone on here no the dif between the h22a rods and the h23 conrods as i have a set of both here and cant see anything,


just trying to work out why 1 has a higher displacement than the other..

can anyone help

 

IIRC the H22 rod is longer.....are you sure they are h22 and h23?
Check out the resource section for specs.

 

thanks man, yeah they def from the 2 dif blocks, any chance you could send me a link to the resource section as im not finding it easy to navigate the site, do you know at which point the rods are meant to be measured as that could explain it

 

Rods are measured center-to-center, which means center from each of the bore holes (big end and small end). h23 rods should be shorter as the stroke is longer. Check out this thread in the faq's: https://honda-tech.com/forums/honda-prelude-4/official-h-f-piston-rod-crank-block-specs-cr-thread-1232811/. You're talking about .06", so you may not be able to see it with just your eye.

 

sorry if i seem a bit slow bit is this the dif between the 2

H22A = 90.7mm/3.570
H23A = 95mm/3.740
thats like a 4.3mm dif

thats a pretty big dif, any idea which tool would be best to measure them with, im assuming they dont have any real identifying marks on them lol

 

No, those are crank stroke numbers. These are the rod length numbers (somebody really needs to fix the html code for the titles in that thread in the faq's):

H22A = 5.633
H23A = 5.572

 

Fair play mate thank you, there not much dif is there

 

May not seem like much in numbers, but it matters. Easiest would be to take the rods to a machine shop and have them measure the rods for you so you know for sure; I doubt they'd even charge you. Alternatively, you could buy a micrometer (~$25) and measure them from the inside edges of the bores (big end to small end), then do a little calculation, adding half the bore diameter of each end to your measurement. For instance, the small end bore is .866", so half would be .433"; the big end is 2.008", so half is 1.004". Take your measurement from bore to bore, then add 1.437" (1.004"+.433") and you should have the center-to-center measurement of the rod.

 

Fair enough mate, im gonna take them to my local engine shop and get them measured, any idea how much the bearings are from over there



Dave

 

Run about $9USD a piece for rod bearings from hondaautomotiveparts.com

 

thank you mate

 

You guys are really over thinking this. What's the stamp on the side of the rod?

P14= H23
P13= 92-96 H22 (press-fit pins)
P5M= 97-01 H22 (floating-pin)

 

haha! How ironic!

 

hahaha

 

no way is it that simple, i will have a look tomorrow, thank you

 

i thought the h23 ran off the p28 ecu

 

P28 is a Civic ECU.

 

oh ok thank you for correcting me

 

ok little more confused, iv looked at the again and 4 of them have P13 stamped on them which i assume are the h22 rods and the others have PT numbers on them, no idea what that means lol

 

if its stamped p13 then its an h22 rods but are the other rods marked with PT2 because if they are then they are jdm f22B dohc rods which are the same as the H23 rods which are marked P13

 

thank you mate