Calico Coated MS-909HX Clevite 77 Small Block Chevy H-Series .001″ Extra Clearance Main Bearings

Clevite 77 H-Series Tri-Metal Main Bearing Set for Small Block Chevy Engines. Suitable for all forms of racing engines, H-Series bearings offer a medium level of eccentricity, a high crush factor with hardened steel backs and thin bearing overlay.

H-Series Main bearings have a Babbit outer layer, a copper-lead alloy second layer and a precision steel back capable of carrying loads up to 12,000 PSI. H-Series Clevite Bearings are likely the most frequently use for high performance / general racing applications. This is typically the bearing type we will recommend in almost all situations.

These bearings are Coated By Calico with their CT-1 Dry Film Lubricant to reduce friction and abrasive wear. The coating lowers the coefficient of friction and increases load carrying capacity. Typical coating thickness is 0.00025″ to 0.00030″ inch.

• H-Series Tri-Metal TM-77
• .001″ Oversize – designed for extra clearance with standard size cranks
• Calico Coated CT-1 Dry Film
• Enlarged chamfers at the sides for greater crank-fillet clearance often used on aftermarket racing cranks