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BRAND NEW IN BOX

ACL Race Series High Performance Connecting Rod Bearings +0.25mm Size
Fits 1993-2001 Honda Prelude with 2.2L DOHC VTEC H22 Engine
Part Number # 4B1912H-STD H22 H22A H22A1 H22A4

The .25mm on the end of this part number means that the bearing is thicker than a standard bearing. Machine shops will sometimes request these to get the bearing clearance perfect. These should be used when your crank has been cut .25mm (.010") under. Do not purchase these thicker bearings unless your machine shop has instructed you to do so.


The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Tri-metal engine bearings.

Designed to withstand higher RPM conditions, ACL Race Series Engine Bearings are available for many of the popular 4, 6 and 8 cylinder applications and feature:

- High strength overlay plate with reduced thickness for improved fatigue properties

- Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.

- Increased crush for improved bearing retention

- Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.

- Increased eccentricity to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.

- Tight consistent wall tolerances to help you maintain consistent clearances.

- Enlarged ID chamfers on bearing edges where required to accommodate large fillet radius on performance crankshafts.


IMPORTANT NOTE: These bearings are +0.01" / +0.25mm oversized.



Pictures are for display purposes and may not be application specific


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