Perfect Circle CB745HN H-Series Connecting Rod Bearing Standard Size

The Perfect Circle CB745HN is a high-performance H-Series connecting rod bearing designed for small block Chevy engines with 2.000" rod journals. Originally developed for NASCAR-type racing, these bearings are suitable for all types of performance and competition engines.

Key Features:

• Medium level of eccentricity with high crush factor for optimal bearing retention and heat transfer
• Hardened steel backs with thin overlays for enhanced durability and strength
• Made without flash plating for better seating and improved oil film characteristics
• Enlarged chamfers for greater crankshaft fillet clearance
• TM-77 tri-metal construction for superior wear resistance
• Standard size bearing for 2.000" crankshaft journals

Applications:

Compatible with 1955-1969 Small Block Chevrolet engines including 265, 283, 302, and 327 cubic inch displacement motors with small journal crankshafts. Also suitable for aftermarket crankshafts with 2.000" rod journals used in modern HEMI and performance applications.

Technical Specifications:

• Bearing Material: TM-77 Tri-Metal
• Standard Shaft Diameter: 1.9990" - 2.0000"
• Maximum Wall Thickness: 0.0621"
• Maximum Length: 0.7920"
• Bearing Housing Bore Minimum: 2.1247"
• Maximum Vertical Oil Clearance: 0.0025"

H-Series bearings are recommended for crankshafts with oversize fillets and engines running in medium to high RPM ranges. These bearings provide the ideal balance of durability and performance for racing, high-performance street, and aggressive driving applications.

Note: Sold individually. A complete V8 engine requires eight (8) rod bearings.