ACL Tri-Metal Main bearings G4fj

ACL Tri-Metal Main bearings G4fj

After building a few motors we have been able to source some custom bearing options. One of which is the ACL Tri-metal bearings that we customize to fit the G4fj by removing the tangs. If you are familiar with engine building this is a practice that is used for many cars and builders. The tangs are just there to hold bearing in place during install, it has no effect on a bearing spinning!

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 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 to the conrod 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.

*** Note these ACL bearings should get you .0019-.0022 clearance, please measure and check before final assembly as you may need to align hone or Hone to achieve proper clearances***