Clevite MS-2258H-.026MM H-Series Performance Main Bearing Set

The Clevite MS-2258H-.026MM is a high-performance engine crankshaft main bearing set from Clevite's renowned H-Series line. Originally developed for NASCAR racing applications, these bearings are engineered to excel in medium-to-high RPM competition engines across various motorsports disciplines.

Key Features:

• Steel backing construction with carefully selected overlay materials for superior durability
• High crush factor design ensures positive retention and optimal oil film pressure
• Medium eccentricity profile balances load distribution and lubrication
• Enlarged side chamfers provide greater crankshaft fillet radius clearance
• Non-flash plated finish promotes better seating and bedding during break-in
• Undersize dimension: -.026MM for precision machined crankshafts

H-Series bearings are the ideal choice for street/strip builds, road racing, circle track, and other high-performance applications where reliable lubrication at elevated engine speeds is critical. If you're unsure which performance bearing series to choose, the H-Series offers an excellent balance of durability and performance characteristics suitable for most competition engine builds.