ACL Bearings 5M1644H-STD 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.

• This Main Bearing Set include 6 Bearings w/Oil grooves and 4 without. The #4 journal will receive the Oil groove on both sides of the journal, the rest have a grooved Bearing on the block side only. See shell diagrams showing #4
• Width: 0.728 in.
• Outside Diameter: 2.3236 in.
• Outside Diameter: 2.3228 in.
• Shaft Diameter: 2.1251 in.
• Shaft Diameter: 2.1243 in.
• Grade Type: Performance
• Maximum Wall Thickness: 0.0985 in.