ACL Crankshaft Bearings / Main Bearings in Standard or Oversize for Chrysler 300C, Dodge Challenger, Charger, Magum, Jeep Commander and Grand Cherokee 5.7 and 6.1

• High-performance tri-metal engine mounts
• Developed to withstand higher speeds
• High-strength overlay plate with reduced thickness for improved fatigue properties

The unique combination of design, metallurgy and technology offers exactly what drivers expect from high-performance Trimetal engine mounts.

The ACL Race Series engine mounts, designed for higher speeds, are characterised by the following features:

• High-strength overlay plate with reduced thickness for improved fatigue properties
• Hardened steel backs on all connecting rod bearings to better support the bearing liner and help hold the bearings in the housing.
• Increased crushing for improved bearing retention
• Elimination of burr formation on the back of the bearings to improve heat transfer through the bearings and maximise adhesion between the bearings and the housing.
• Increased eccentricity to compensate for bore distortion at high speeds and to support the formation of hydrodynamic oil films.
• 3/4-grooved main bearings to optimise the bearing surface of the bearings and the oil flow to the connecting rod bearings.
• Tight, uniform wall tolerances that help you maintain even spacing.
• Enlarged internal chamfers on the bearing edges where required to accommodate the large fillet radius of high-performance crankshafts.

ACL part numbers: 5M2220H-STD, 5M2220H-.025, 5M2220H-.25

Fits:

Delivery includes:

• 1 set of main bearings