Rebuilt OEM Connecting Rod compatible with 1999-2014 LS Vortec 5.3L & 6.0L All with press fit pins and 1997-05 5.7L LS1 LS6 ALL with press fit pins. Casting #143. ALL Reconditioned connecting rods are OE Rods that have been cleaned and inspected with the small and big ends machined back to OE-size, unless otherwise noted. Connecting rod bolts are only replaced when necessary.”