This Clevite H-Series connecting rod bearing is a standard size, narrowed, extra oil clearance bearing for Chevrolet small block V8 and GM LS-series V8 engines. It is sold each. Clevite H-Series performance bearings use a medium level of eccentricity, high crush, a hardened steel back and a thin overlay, and are made without flash plating for better seating. They are intended for crankshafts with oversize fillets and for engines that run in the medium to high RPM range.
Specifications:
- Type: Connecting rod bearing (sold each), H-Series performance
- Construction: tri-metal, hardened steel back and thin overlay
- Size: standard
- Design: narrowed
- Clearance: extra oil clearance
- Engine: Chevrolet small block V8 and GM LS-series V8 engines
- Part number: CB663HXN
Engine Application: Chevrolet small block V8 and GM LS-series V8 engines (262, 267, 302, 305, 307, 327 and 350 cubic inch). Clevite fitment data lists many GM passenger cars and trucks. Confirm against your engine before ordering.
FAQ
What engine does the Clevite CB663HXN fit?
It fits Chevrolet small block V8 and GM LS-series V8 engines (262, 267, 302, 305, 307, 327 and 350 cubic inch). Confirm against your engine before ordering.
What does the suffix in CB663HXN mean?
H-Series is Clevite's performance bearing line. It uses a harder, higher-crush tri-metal construction designed for medium-to-high RPM use and crankshafts with oversize fillets. A narrowed bearing has reduced width to increase fillet clearance on the crankshaft. The X in the suffix marks extra oil clearance compared with the standard bearing.
How many do I need?
This bearing is sold each. A V8 has eight connecting rods, so order the quantity your build needs.
What size is this bearing?
Standard size. Confirm your crankshaft journal sizing before ordering if the crankshaft has been ground undersize.
