ACL 8B7281HX-STD Race Series rod bearings are for performance Chevrolet Gen V engine builds requiring standard crankshaft journals with .001 inch of extra oil clearance. The tri-metal copper-lead alloy bearings use walls .0005 inch thinner to provide the additional clearance.
Specifications
- Manufacturer: ACL
- Part number: 8B7281HX-STD
- Series: Race Series
- Bearing type: Connecting rod bearing set
- Applications listed: Chevrolet Gen V 5.3L L8B and L83; 6.2L LT1, LT4, and L86
- Crankshaft journal size: Standard
- Oil clearance: .001 inch extra
- Material: Tri-metal copper-lead alloy
- Dowel pin holes: No
- Narrowed bearings: No
- Width: .837 inch
- Listed outside diameter range: 2.224–2.225 inches
- Listed shaft diameter range: 2.0992–2.0998 inches
- Maximum wall thickness: .0614 inch
- Quantity: Set of 8
Construction Features
- Hardened steel backing supports the bearing lining.
- Increased crush helps retain the bearings in the housing.
- No flash plating on the bearing backs supports heat transfer and housing grip.
- Increased eccentricity accommodates bore distortion at elevated RPM.
- Closely controlled wall tolerances support consistent clearances.
Before Ordering
Extra oil clearance is not a crankshaft undersize. Confirm the part number against your specific engine, connecting rods, and crankshaft. Verify journal dimensions, rod housing dimensions, and assembled oil clearance during assembly.
Contact 3V Performance for help selecting bearings for your combination.