Are there any tolerance/measurement differences between the h22a1 and h22a4 rods?

Eagle has 2 different rod options. The a1 and a4/type-s. Unfortunately the a4/type-s uses a 5/16" bolt opposed to the 3/8" bolt that the a1 rod uses.

Honda uses different part numbers for the rods but the bearing numbers are identicle. I just wanted to double check that the rods are in fact interchangeable. I am using a 97 crank so the mains are the same as the 92-96 (not that it matters in relation to the rods).

 

A good picture to show the differences not from 97+ H22A rods but even within the same years of 92-96...Honda is wierd like that...

On the left thinner rod, on the right thicker rod with oil passage, Both appear to be jdm h22a rods from 92-96 era.

97+ I believe are free floating...?

 

Good picture.

Everything is the same. I just cross referenced all the specs. Thanks for posting the picture up so I could see the differences from the OEM parts.

 

a4 rods are floating wrist pins.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PrecisionH23a &raquo;</TD></TR><TR><TD CLASS="quote">Good picture.

Everything is the same. I just cross referenced all the specs. Thanks for posting the picture up so I could see the differences from the OEM parts.</TD></TR></TABLE>
nah dude the a4 have floting wrist pins....
but i dont know about the aftermarket rods.

 

The difference on the two versions of the Eagles is .001" on the little end diameter.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flyrod &raquo;</TD></TR><TR><TD CLASS="quote">The difference on the two versions of the Eagles is .001" on the little end diameter.</TD></TR></TABLE>

Are you speaking of the wrist pin bore?

The difference from what I see is the 3/8" bolt on the a1 compared to the 5/6" on the a4 design.