Clevite 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.
Clevite Tri Armor GMC Pass & Trk 400 6.6L 1970-80 Main Bearing Set
Engine Crankshaft Main Bearing Set
