Clevite SBC H-Series .020″ Undersize Main Bearings MS-909H-20

Clevite 77 Tri-Metal Connecting Main Bearing Set for Small Block Chevy. Narrowed for clearance with aftermarket high performance crankshafts with larger fillet radius. 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.

The H-Series bearings have enlarged chamfers at the sides for greater crank-fillet clearance and are made without flash plating for better seating.

• 0.020″ Crankshaft Undersize
• 1/2 Groove
• Tri-Metal
• Use H-Series bearings with crankshafts that have oversize fillets and where engines run in the medium to high RPM range