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ACL Race Main Bearing Kit Mazda Protege / Miata / MX-3 / MX-5 BP B6 B3 (STD)
    ACL Race Main Bearing Kit Mazda Protege / Miata / MX-3 / MX-5 BP B6 B3 (STD)
    Purchase ACL Race Main Bearing Kit Mazda Protege / Miata / MX-3 / MX-5 BP B6 B3 (STD)
    • SKU: 401507372148
      ACL Race Main Bearing Kit Mazda Protege / Miata / MX-3 / MX-5 BP B6 B3 (STD)

    • $52.50

    •  

    ACL TRI-METAL RACE SERIES

    STD MAIN BEARINGS SET

    Part# 5M8353H-STD

    Applications:

    Mazda 323, Protege, Miata, MX-3, and MX-5 Model
    B3, B3-MI, B5, B5Y, B6, B6D, B6T, B6Y, BP, BPD


    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.