ACL BMW B58 / Toyota Supra B58 0.25mm Oversized Performance Rod Bearing Set

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

Designed to withstand higher RPM conditions, ACL Race Series Connecting Rod Bearings are available for many of the popular 4, 6 & 8 cylinder applications.

Features:

•  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. 

Specifications:

• ACL Race Series engine bearings provide the dependability it takes to hold up under higher RPM conditions.
• Combination of design, metallurgy and engineering come together to deliver
• Material: Aluminum Tinwhat drivers expect from high performance parts.