Clevite H-Series Main Bearing - Standard - Extra Oil Clearance - GM LS-Series H775C04XXL Master Cylinder Bore Size: 1

Master Cylinder Bore Size: 1

1-1/8 in Bore

The ONLY correct fitting to use is a contoured port fitting with an O-ring seal such as :Part # AT985010ERL

Distributor Hole

Clevite H-Series Main Bearing - Standard - Extra Oil Clearance - GM LS-Series H775C04XXL Master Cylinder Bore Size: 1Clevite 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. Vehicle Applications: 2000 2014 GMC Yukon 2003 2006 GMC Envoy XL 2003 2008 Isuzu NPR HD 2004 2007 Cadillac CTS 2005 2009 Saab 9 7x 2007