ACL 8B663HXD-STD Race Series rod bearings combine dowel pin holes with standard 2.100-inch crankshaft journal sizing and .001 inch of extra oil clearance. This non-narrowed Chevrolet performance set features tri-metal copper-lead alloy construction.
Specifications
- Manufacturer: ACL
- Part number: 8B663HXD-STD
- Series: Race Series
- Bearing type: Connecting rod bearing set
- Applications listed: Compatible Chevrolet large-pin small-block, Gen III/IV LS, and Vortec combinations using 2.100-inch rod journals
- Crankshaft journal size: Standard, 2.100-inch large pin
- Oil clearance: .001 inch extra
- Material: Tri-metal copper-lead alloy
- Dowel pin holes: Yes
- Narrowed bearings: No
- 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 8B663HXD-STD against your crankshaft and connecting rods, including the required dowel-pin arrangement and bearing width. Engine family alone does not establish fitment.
Verify journal dimensions, rod housing dimensions, and assembled oil clearance during assembly. Contact 3V Performance for application assistance before ordering.