ACL Bearings 4B1972HD-.025 Features:

Trusted by champions worldwide, ACL RACE Series Bearings are the choice for record-setting engines from sport compact to small block race machines. Engineered w/a unique blend of design, metallurgy, and precision manufacturing, these Bearings deliver unmatched durability and performance under extreme conditions.

• Improved bearing retention from higher radial contact pressure. Locks the bearing into the housing. More effective heat dissipation through improved thermal transfer.
• Increased eccentricity to improve shape adaptation to compensate for bore distortion at high speed operation
• Accommodate larger fillet radii on performance crankshafts
• manufactured to exacting tolerances