ACL Bearings Main Bearing Set 5M1038H-STD

Main bearing wear is one of the first indicators of engine stress—inadequate bearing clearance leads to catastrophic failure under load. The ACL 5M1038H-STD delivers precision-engineered bearing surfaces and proper oil film thickness, ensuring consistent performance whether you're building a street engine or pushing power at the track. This standard-size set gives you the reliability and dimensional accuracy required for a solid bottom-end foundation.

• H-Series engine compatible
• Small Block Chevy specific
• Standard bearing size
• Complete installation kit
• High-quality construction
• Optimized oil clearance
• Bolt-on fitment
• Long-lasting durability