Clevite CB1665HND1 H-Series Connecting Rod Bearing - Set

The Clevite CB1665HND1 is a high-performance H-Series connecting rod bearing set designed for demanding racing and competition applications. These precision-engineered bearings feature medium eccentricity, high crush for maximum retention, and a hardened steel back for added strength and resistance to fretting.

H-Series Technology:

• Medium eccentricity design optimized for medium to high RPM operation
• Thin overlay construction prevents overlay fatigue and "hen tracking"
• Enlarged chamfers provide greater crankshaft fillet clearance
• Made without flash plating for better seating and bedding-in
• Hardened steel backing for superior strength and durability
• HD suffix indicates dowel holes for use with aluminum connecting rods

Applications and Benefits:

Originally developed for NASCAR-type racing, H-Series bearings are suitable for all types of competition engines running in the medium to high RPM range. The TriMetal construction provides exceptional strength and durability while meeting or exceeding OEM standards. These bearings protect vital engine components from the harmful effects of friction and are ideal for crankshafts with oversize fillets.

The medium eccentricity design delivers optimal contact patterns covering 2/3 to 3/4 of the bearing surface, ensuring proper load distribution and oil flow. Use H-Series bearings when broader contact patterns are needed compared to P-Series applications.

Important Note: Clevite bearings are sold as paired sets (two bearing halves for one connecting rod). For a complete engine rebuild, order one set per cylinder.