Product Description
King HP Main Bearing Set MB5013HPSTDX for LS Engines
Standard Size With +.001-Inch Extra Oil Clearance | Fits 1997-2013 LS-Based V8 Engines
The King HP Main Bearing Set MB5013HPSTDX combines standard sizing with +.001-inch extra oil clearance for the listed 4.8L, 5.3L, 5.7L, 6.0L and 6.2L LS-based V8 engines. Built with King’s Alecular™ bi-metal construction, these performance main bearings feature an aluminum/tin/silicon alloy top layer bonded to a high-strength steel backer. Developed for short-duration high-load applications, the HP Series supports street, strip, drag racing and drift builds using compatible factory or aftermarket crankshafts, including nodular cast iron designs.
Key Features & Benefits
- Standard Size With Extra Oil Clearance: MB5013HPSTDX is the standard-size configuration with +.001-inch extra oil clearance. This specification distinguishes it from a standard-clearance bearing set and identifies the extra-clearance option for your compatible LS engine build.
- Alecular Bi-Metal Construction: An aluminum/tin/silicon alloy top layer is bonded to a high-strength steel backer to resist surface migration and extrusion under very high loads. With a Vickers hardness of 40, the Alecular material withstands short-duration high loads better than Babbitt, including brief periods of metal-to-metal contact.
- Debris Embedability & Journal Protection: The .015-inch top layer provides greater macro-particle embedability than a typical .0005-inch tri-metal Babbitt layer, helping protect crankshaft journals from foreign debris. King also specifies that the Alecular layer can tolerate squeezing and wear up to .010 inch without damaging the journals, compared with .0005 inch for tri-metal.
- High-RPM Oiling Features: Greater bearing eccentricity, large chamfered oil holes and 1/2 grooving support improved oiling in high-rpm applications. A chamfered bearing surface also accommodates large-radius crankshafts, combining oiling features with clearance for the crankshaft radius.
- Performance Application & Temperature Capability: The Alecular material has a stated temperature threshold of 450°F versus 350°F for tri-metal, an increase of almost 30 percent. The HP Series is suited to performance applications using nodular cast iron crankshafts, including street, strip and drift builds with compatible factory or aftermarket crankshafts.
Key Fitments
Fits 1997-2013 LS-Based V8 Engines in the Following Applications:
- Engine displacements: 4.8L, 5.3L, 5.7L, 6.0L and 6.2L
- Engine codes: LS1, LS2, LS3, LS6, LS4 and LSA
- Engine codes: L99, L92, L9H, L94, L76 and L77
- Engine codes: LY6, L96, LFA, LZ1, LQ4 and LQ9
- Engine codes: LY5, LMG, LMF, LH6, LC9, L33, LM7, L59, LH8 and LH9
- Engine codes: LY2, L20 and LR4
