This Clevite H-Series connecting rod bearing fits Chevrolet big block V8 engines. It is a standard size bearing with extra oil clearance that is narrowed and coated, sold individually. Clevite H-Series performance bearings use a medium level of eccentricity, high crush, a hardened steel back and a thin overlay, and are intended for crankshafts with oversize fillets and engines that run in the medium to high RPM range.
Specifications:
- Type: Connecting rod bearing, H-Series (sold each)
- Size: standard
- Design: narrowed
- Clearance: extra oil clearance
- Finish: coated
- Engine: Chevrolet big block V8
- Part number: CB743HXNC (also listed as CB-743HXNC)
Engine Application: Chevrolet big block V8 (Big Block Chevy).
FAQ
What engine does the Clevite CB743HXNC fit?
It fits Chevrolet big block V8 engines, listed as Big Block Chevy. Confirm your exact engine before ordering.
Is this sold as a full set?
No, it is sold individually (each). A V8 has eight connecting rods, so order eight bearings for a complete engine.
What size is this bearing?
It is standard size, for crankshaft rod journals that have not been machined undersize.
What does the X in HX mean?
The X designates extra oil clearance, meaning additional clearance compared with the standard H-Series bearing.
What is a narrowed bearing?
A narrowed bearing has reduced width to increase fillet clearance on the crankshaft, which is common in performance builds.

