Running a serious engine build? You need bearings you can trust when the boost is up and the RPM is high. This ACL H-Series main bearing set is the benchmark for high-performance builds, offering superior load-bearing capacity and fatigue resistance over stock components. If you’re pushing big power, this is the reliable foundation your bottom end demands.

Key Features

• Standard (STD) sizing for un-machined or standard spec journals

• H-Series performance alloy composition

• Increased crush for better seating and heat transfer

• Greater eccentricity to compensate for bore distortion at high RPM

• Superior oil clearance control

• Trusted for drag, circuit, and street performance builds