ACL Bearings 5M1039H-10 Race Series Main Bearing Set Undersize Ford - 0.010 370/429/460 V8

The ACL Bearings 5M1039H-10 is a high-performance race series main bearing set engineered for Ford 370ci, 429ci, and 460ci V8 engines with a 0.010" undersize specification. This bearing set delivers everything performance bearings should be by utilizing design, metallurgy, engineering, precision quality control, and years of knowledge and experience.

Key Features:

• Multi-layered tri-metal copper alloy construction that blends characteristics to provide high strength and excellent seizure resistance
• Trimetal lead, tin, copper and nickel for superior strength and seizure resistance
• Bearing material: F780 with upper and lower bearing halves included
• Manufactured to exact tolerances ensuring a reliable fit and helping to maintain consistent clearances, augmented with extended grooves
• Oil clearance range: 0.00019685" to 0.00240157"

Technical Specifications:

• Part Number Base: 5M1039H
• Bearing Size: 0.010" undersize
• Maximum shaft size: 3.000" (76.205mm)
• Maximum tunnel size: 3.193" (81.102mm)
• Wall thickness at crown: 0.0959" (2.436mm)
• Overall length: 0.950" (24.13mm)

ACL bearings are designed for tuning and engine upgrades where you want better quality with higher bearing capacity than normal standard bearings, with improvements of material, dynamic thickness, heat conduction, oil grooves and oil distribution. The H-Series designation indicates standard oil clearance race bearings optimized for high-RPM performance applications.