ACL Bearings 5M590A-10 Main Bearing Set 0.010" Undersize Ford Small Block V8

The ACL Bearings 5M590A-10 is a precision-engineered main bearing set designed for Ford small block V8 engines including 255, 289, and 302 cubic inch applications from 1962-1998. This set features A-Series construction with 0.010 inch undersize dimensions to accommodate reground crankshafts, providing a reliable solution for engine rebuilds and performance applications.

Key Features:

• Bimetal aluminum construction with enhanced composition that provides advantages over ordinary bearings
• Superior strength, durability, and fit for OEM replacement applications
• Complete main bearing kit with all components needed for installation
• Precision-manufactured to exact tolerances for proper oil clearance and bearing performance
• Steel-backed bearing shells for improved structural integrity and heat dissipation

Modern bimetal aluminum bearings have replaced traditional lead-content bearings as standard OE components in today's engines for environmental considerations. ACL's aluminum bearings meet modern environmental and performance standards while offering enhanced construction and composition that deliver superior strength and durability. This A-Series bearing set is ideal for engine rebuilders and performance enthusiasts seeking reliable, high-quality main bearings for Ford small block applications.