ACL Bearings 1B745HD-STD H-Series Doweled Rod Bearing Small Block Chevy

The ACL Bearings 1B745HD-STD is a high-performance connecting rod bearing designed for Small Block Chevrolet engines with 2.000" small pin journals. This H-Series bearing features a doweled design for enhanced bearing retention and stability in demanding racing and performance applications.

Key Features:

• Hardened steel backing for improved support and bearing retention in the housing
• High-strength overlay plate with reduced thickness for superior fatigue resistance
• Doweled design provides positive location and prevents bearing rotation under high loads
• Increased crush for improved bearing retention during high-RPM operation
• Enhanced eccentricity compensates for bore distortion and assists in hydrodynamic oil film formation
• Elimination of flash plating on bearing back improves heat transfer and maximizes housing grip
• Tight, consistent wall tolerances for maintaining precise oil clearances
• Tri-metal construction with aluminum-tin overlay for durability and embeddability

ACL Race Series bearings are engineered specifically for medium to high RPM applications and crankshafts with oversized fillets. The H-Series design incorporates advanced metallurgy and engineering proven in championship-winning engines across NASCAR, NHRA, IHRA, and various motorsports disciplines. Standard size fits stock crankshaft journals.