ACL Bearings H-Series Main Bearing - 0.010 in Undersize - Small Block Chevy 5M1038H-10 4903 Eliminates flat spots off idle

Eliminates flat spots off idle or at any other RPM range

200 in Long

It is very effective at blocking the sun from your eyes

GMR45 or M1-V

ACL Bearings H-Series Main Bearing - 0.010 in Undersize - Small Block Chevy 5M1038H-10 4903 Eliminates flat spots off idleProduct Description: Main Bearing H Series 0. 010 in Undersize Small Block Chevy High performance driving demands that you use the best parts. So rely on ACL's Race Series Products to perform to the exacting race standards you expect. They provide the dependability it takes to hold up under higher RPM conditions. The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance parts. If