ACL .25 High Performance Rod Bearing Set for Opel Family II

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ACL 4B2322H-.25

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If you Place Demands on your engine…demand the best! ACL has a proud & rich history in Motorsport - it is in our DNA. There is no better proving ground than the racetrack whatever it's configuration. In the heat of competition proven technology always comes through. The ACL RACE Series performance engine bearing range of today has a strong pedigree in motorsport & traces its roots back to the 1960's with the manufacture of engine bearings for use in the wold conquering Brabham Formula 1. The unique Combination of design, metallurgy, engineering & precision quality control come together to deliver what engine builders expect from performance engine bearings. Whatever your application we have you covered - if you are looking for the best - demand the best! Features of ACL Race Series Bearings Precision Manufacturing ACL Race Series Performance Engine Bearings are manufactured to exacting tolerances. Micron tolerance machining supported by precision measurement systems delivers consistent accuracy to key characteristics liek whall thickness and crush. This ensures reliable fit and helps maintain consistent clearances. Bearing Material Enhancements A blend of characteristics to provide high strength and excellent seizuer resistance. No flash plating is applied to further improve bearing retention and maximise heat transfer Bearing Design Enhancements Crush Increased for: Improved bearing retention from higher radial contact pressure. Lock the bearing into the housing. More effective heat dissipation through improved thermal transfer. Bearing Eccentricity: ACL Race Series Performance Engine Bearings feature increased eccentricity to increase improve shape adaptation to compensate for bore distortion at high speed operation. Assists in the formation of hydrodynamic oil film. Main Bearings with Extended Grooves: Fill (180 Deg) grooved uppers with matching partial groove in the lowers to reduce interruption to big end oil supply. Tapered groove run-out to smooth big end supply cut-off avoiding pressure pulsing and cavitation. Enlarged ID Chamfers to accommodate larger fillet radii on performance crankshafts.

Returns Policy

--PLEASE NOTE: MOST ORDERS ARE SUBJECT TO RESTOCK OR CANCELATION FEE. PLEASE CALL OUR OFFICE FOR DETAILS AND EXCEPTIONS-- You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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