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Discussion Starter · #1 · (Edited)
okay im purchasing rods and i jus wanna be 100% sure that these are going to work

they are h22 DOHC Vtec connecting rods
I-beam, Forged 4340
R3-5630IL-5.630/2.008/.935/.866 with ARP Bolts
 

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no, they wont work. they'll put your pistons through the head, literally.
i already said in your other thread that h23 rods are the only ones that work

plus the fact that the crank end is totally different and won't even fit
 

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okay im purchasing rods and i jus wanna be 100% sure that these are going to work

they are h22 DOHC Vtec connecting rods
I-beam, Forged 4340
R3-5630IL-5.630/2.008/.935/.866 with ARP Bolts
You want H23a/F22 rods. I bought a set of TopLine H23 rods for like $135 or so. Hrm, let me look for dimensions...

H23/F22 connecting rods:
Center-to-Center length ---- 5.580
Big End Bore ---------------- 2.008
Pin ------------------------- 22mm

Here is a link to the rods I bought. $39/each
http://www.importperformanceparts.net/imports/topconrods-honda3.html

*edit*
The H22 rods have the same B.E. Bore and Pin diameter, but the Center-To-Center length is different. This small difference in length can make a huge impact on whether or not the engine will work properly. Longer rods could change all sorts of things like where the pistons sits in the cylinder, stroke length, piston speeds, etc. It is unclear to me whether or not H22 rods will work at all.
 

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no, they wont work. they'll put your pistons through the head, literally.
i already said in your other thread that h23 rods are the only ones that work

plus the fact that the crank end is totally different and won't even fit
just to clarify: h23/f22/h22 all have the same BE and SE besides the A4's which have floating pins. The f22 and h23 rods are identical and share the same part number. Same as the f22/h23 crank.
 

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just to clarify: h23/f22/h22 all have the same BE and SE besides the A4's which have floating pins. The f22 and h23 rods are identical and share the same part number. Same as the f22/h23 crank.
i forget which year group, but either the a1 or the a4 actually has a BE bore that is a couple thousandths larger.
which is why i laugh when i see ebay auctions for bearings that say they fit all h22/h23, cuz they dont, it's either one or the other. check acl's bearing specs/listings, and honda's BE bore and crank journal diameter specs
 

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steve, they are all the same BE. You may be thinking about the f23 or f20b.

the only things that changed were floating pins instead of pressed and larger mains.

http://www.honda-tech.com/showthread.php?t=1232811
ur right, i just checked. the BE bore in the rods is the same. it's the bearings and the crank rod journals that are different. bearings are different thicknesses to make up for the different crank journal diameters. the a4 crank journals are 0.001" larger than the a1 crank journals

but the rods are still totally different lengths, still meaning you can't use them in a b20/b21
 

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main journals are different in 98+ h22's, but the rod journals are the same all years.
yes the mains are different, by a lot.
but the rod journals are different too. a common misconception, which is why i laugh at all the ebay auctions for h22 bearings, they're rarely correctly listed. most people probably have no idea their bearings are either too tight or too loose

h22a1 rod journal diameter: 1.8880"-1.8888"
h22a1 rod bearing thickness: 0.0592"
ACL part #: 4B1936

h22a4 rod journal diameter: 1.8890"-1.8898"
h22a4 rod bearing thickness: 0.0589"
ACL part #: 4B1912
 

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yes the mains are different, by a lot.
but the rod journals are different too. a common misconception, which is why i laugh at all the ebay auctions for h22 bearings, they're rarely correctly listed. most people probably have no idea their bearings are either too tight or too loose

h22a1 rod journal diameter: 1.8880"-1.8888"
h22a1 rod bearing thickness: 0.0592"
ACL part #: 4B1936

h22a4 rod journal diameter: 1.8890"-1.8898"
h22a4 rod bearing thickness: 0.0589"
ACL part #: 4B1912
hmmm..never heard that before...how does the 97 h22a4 fit in this picture, since it is the oddball. It still has 50mm mains...iirc.
 
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