ACL Undersized Main Bearing Set for 22+ GR86 Models.

These Main Bearings are designed to withstand high RPM conditions.

The set includes all bearings needed for a complete main bearing swap.

Note: These Bearings are 0.025mm Thinner than OE

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.
• 3/4 grooved Main Bearings to optimize bearing load carrying surface area and oil flow.
• Tight consistent wall tolerances to help you maintain consistent clearances.
• Enlarged ID chambers on bearing edges where required to accommodate large fillet radius on performance crankshafts.

Fits:

• 2022+ Toyota GR86
• 2022+ Subaru BRZ