ACL Subaru FA20 0.25mm Oversized High Performance Main Bearing Set

• High performance Trimetal engine bearings
• Designed to withstand higher RPM conditions
• High strength overlay plate with reduced thickness for improved fatigue properties

• 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.

Fits
Subaru    FA20    Subaru FA20 1998cc Flat4 DOHC 4v    
Subaru    FA24D    Subaru FA24D 2387cc Flat4 DOHC 4v    
Subaru    FA24F    Subaru FA24F 2387cc Flat4 DOHC 4v Turbo    
Subaru    FB20    Subaru FB20 1995cc Flat4 DOHC 4v    
Subaru    FB25    Subaru FB25 2498cc Flat4 DOHC 4v    
Toyota    4U-GSE    Toyota 4U-GSE (FA20) 1998cc Flat4 DOHC 4v