This ACL High Performance connecting rod bearing set is machined 0.25mm oversize for the Honda F20C/F22C engine (Honda S2000) and the 1997-2001 H22A4 engine (Honda Prelude). The 0.25mm oversize spec is for a crankshaft rod journal machined 0.25mm over stock, a common step when reconditioning a used crank.
Specifications:
- Type: Rod Bearing Set
- Size: 0.25mm Oversize
- Engine Fitment: Honda F20C / F22C, Honda H22A4 (97-01)
- Vehicle Platform: Honda S2000, Honda Prelude
- Part Number: 4B1912H-.25
FAQ
What does 0.25mm oversize mean?
It means the bearing is sized for a crankshaft rod journal machined 0.25mm over the stock dimension, typical after a crank regrind.
What vehicles does this fit?
The Honda S2000 (F20C/F22C engine) and the 1997-2001 Honda Prelude (H22A4 engine).
Do I need this size or the Standard set?
Use this 0.25mm oversize set only if your crank's rod journals were machined 0.25mm over stock. Otherwise use the Standard size set.
Is this a rod or main bearing set?
This is a rod (connecting rod) bearing set only.

