Clevite H-Series Coated Main Bearing Set - Standard - Big Block Chevy 2020023 Plugs provide a location to

Plugs provide a location to bleed air from cooling system of most GM LS engines

1964-1966 GMC Suburban

Drilled and slotted aluminum support strengthens Dirt Late Model and Modified rear roof area

79% increase in holding power

Clevite H-Series Coated Main Bearing Set - Standard - Big Block Chevy 2020023 Plugs provide a location toClevite H Series performance bearings have a medium level of eccentricity, high crush, and a hardened steel back and thin overlay. These bearings are made without flash plating for better seating. Use H Series bearings with crankshafts that have oversize fillets and where engines run in the medium to high RPM range. Product Description: Main Bearing H Series Standard Coated Big Block Chevy Clevite engine bearings have an extensive, long standing