ACL Race main bearings for Honda K20C

ACL Race main bearings are tri-metal bearings developed for the loads encountered at higher RPM. Their combination of design, metallurgy and engineering improves durability and bearing retention in the housing.

This set is intended for precise clearance control and effective formation of a hydrodynamic oil film in high-performance engines.

• High-strength overlay plate with reduced thickness for improved fatigue properties
• Increased crush for improved bearing retention
• Elimination of flash plating on the back for improved heat transfer and grip in the housing
• Increased eccentricity to compensate for bore distortion at high RPM
• 3/4-grooved main bearings to optimize load-carrying surface area and oil flow
• Tight, consistent wall tolerances to help maintain consistent clearances

Suitable for: Honda Civic IX (FK) / X (FC/FK) / XI (FE/FL).

Engines: K20C (K20C1). Please check your vehicle’s engine code (registration document or VIN) before ordering; if in doubt, contact us and we will check for you.

Sizes

STD is the standard size for an unground crankshaft. Undersizes (−0.25 mm, −0.50 mm …) are for a reground crank, and “+0.025 mm clearance” (X) is for highly stressed engines. Your machine shop chooses the size after measuring.