about to replace a piston in my 92
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Junior Member
Joined: Sep 2006
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From: chipley, fl, usa
about to replace a piston in my 92
h23, im about to replace the piston. what i need to know are what are the differences in the A and B pistons, and what kind of sleeving does a stock h23 block have, cause i might bore it .25 over and use an oversized piston.
Honda-Tech Member
Joined: Dec 2006
Posts: 592
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From: Orlando, Florida
Re: about to replace a piston in my 92
If im not mistaken..the h23 has the FRM sleeves..if you want to put OS pistons in there they'd have to be FRM compatible or if its not FRM compatible you would have to sleeve the block
Honda-Tech Member
Joined: Mar 2006
Posts: 1,528
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From: MA
Re: about to replace a piston in my 92
Straight from Honda manual,
.
AAAA or BBBB numbers are etched on the block closer to the drivers side .. order the original-sized piston on that cylinder ( whether it be A or B-sized ) ..
.
A: 87.010-87.020mm (3.4256-3.4260in)
B: 87.000-87.010mm (3.4252-3.3665in)
service limit: 87.070 (3.4279IN)
.
H23 stock sleeves ... FRM ... ( every H-series motor has FRM sleeves )
.
.
AAAA or BBBB numbers are etched on the block closer to the drivers side .. order the original-sized piston on that cylinder ( whether it be A or B-sized ) ..
.
A: 87.010-87.020mm (3.4256-3.4260in)
B: 87.000-87.010mm (3.4252-3.3665in)
service limit: 87.070 (3.4279IN)
.
H23 stock sleeves ... FRM ... ( every H-series motor has FRM sleeves )
.
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