HP Cam Bearing Set - GM LSX Blocks

The DURA-BOND HP Cam Bearing Set (GMP-25) is a precision camshaft bearing kit engineered for GM LSX engine blocks. This standard journal bearing set provides the critical load-carrying surfaces between the camshaft and cylinder block, directly affecting valve timing stability, oil pressure distribution, and overall engine reliability during sustained high-RPM operation. For engine builders, performance shops, and serious enthusiasts rebuilding or upgrading LSX-based powerplants, proper bearing selection is non-negotiable—inadequate bearing clearance or material degradation under load leads to catastrophic internal damage.

DURA-BOND's HP series is formulated for high-performance applications where conventional OEM bearing material may reach its thermal and load limits. The bearing set arrives as a complete kit, eliminating the need to source individual bearing journals separately. Proper installation requires precise alignment and torque specifications; bearing clearance (typically 0.0015"–0.0035" depending on journal diameter) must be verified during engine assembly to ensure adequate oil film without excessive play. The 0.59 lb weight confirms this is a full multi-piece bearing set sized for the standard GM LS family journal configuration.

This bearing kit is essential for anyone performing an LSX block rebuild, whether for street performance, racing, or engine swap applications. Users rebuilding LS3, LS7, LS9, or other LSX variants rely on consistent bearing material to maintain cam lobe contact pressure and prevent scoring or spalling that compromises engine integrity. Engine builders know that cutting corners on internal bearings during a rebuild creates hidden failure modes that surface only under load, making OEM-equivalent or performance-grade bearing sets a critical investment in long-term engine durability and reliability.