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ACL Main & Rod Bearing for WRX & STi 52mm Position #5 w/ Extra Oil Clearance
    ACL Main & Rod Bearing for WRX & STi 52mm Position #5 w/ Extra Oil Clearance
    Purchase ACL Main & Rod Bearing for WRX & STi 52mm Position #5 w/ Extra Oil Clearance
    • SKU: 272591186498
      ACL Main & Rod Bearing for WRX & STi 52mm Position #5 w/ Extra Oil Clearance

    • $86.00

    •  

    ACL TRI-METAL RACE SERIES

    MAIN & ROD BEARINGS SET

    Part # 4B8296HX-STD & 5M8309HX-STD

    W/ Extra Oil Clearance (0.025mm / 0.001")

    Application: 

    Subaru Impreza WRX & STI 02-10 (EJ20 / EJ22 / EJ25)
    w/ Extra Oil Clearance (0.025mm / 0.001")

    • ACL RACE SERIES Main Bearing Set Standard Size (5M8309H-STD) (for flange position #5)
    • ACL RACE SERIES Rod  Bearing Set Standard Size (4B8296H-STD)  (for 52mm journal size)


    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 & 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 bearing sand 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.

    - 3/4 grooved Main Bearings to optimize bearing load carrying surface area and oil flow to the con-rod bearings. 

    - 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.