King Engine Bearings CS5510HP HP-Series Camshaft Bearing Set for GM 294 325 346 364

The King Engine Bearings CS5510HP is a high-performance camshaft bearing set engineered for General Motors 4.8L, 5.3L, 5.7L, and 6.0L engines (294, 325, 346, and 364 cubic inch displacements), including Gen III/IV LS-series applications. Built to King's HP-Series standard, these cam bearings are designed for engines that demand more than a conventional stock replacement can offer.

HP-Series Construction:

• Micro Babbitt Chill Cast: The lead-based babbitt overlay is rapidly cooled during casting to produce an extremely fine grain structure, effectively doubling tensile strength compared to standard babbitt bearings
• Seamless Steel Backing: Each bearing is constructed from seamless steel tubing, providing a rigid foundation that minimizes microscopic deflections under high load
• Precision Machined Tolerances: Tight dimensional control over installed oil clearances reduces operating bearing pressure and promotes consistent oil film maintenance
• Superior Fatigue Resistance: HP-Series construction provides significantly greater fatigue strength than conventional bearings, capable of withstanding aggressive racing valve spring loads
• Standard Camshaft Size: Designed for use with a standard (STD) diameter camshaft — no align boring required
• Sold as a Complete Set: Includes all cam journal bearings required for a full engine build or rebuild

King Engine Bearings' HP-Series cam bearings are a proven choice for performance street builds, track engines, and high-lift camshaft applications where OEM replacement bearings fall short. The micro babbitt chill cast process delivers the conformability and embedability characteristics of traditional babbitt while dramatically improving load capacity and durability.