ARP 134-3609 Cylinder HEAD BOLT Kit GM Chevy 98-03 LS1 LS6 4.8L 5.3L 5.7L 6.0L
Fits 1998-mid-2004 GM LS engines with different length bolts. (GM LS GEN III engines that utilize 2 different length head bolts plus a third smaller bolt size).
!!! IMPORTANT NOTE: MUST HAVE 2 different length primary head bolts plus a third smaller bolt. There is a Mid-Year split on the head bolts, If you have ALL SAME Size head bolts this kit is NOT for YOU, see 134-3610 DO NOT BUY THIS KIT until you have pulled the head and verified the size.