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Head Bolt Kit, LS1 2004-Up, Kit for One Head

This bolt kit includes fifteen head bolts for 2004 and later LS1 and LS6 engines. This kit services one head only. Two are required per engine. Head bolts cannot be reused on these engines.

Technical Notes: Gen III engines produced from January 2004 forward have a short style head bolt design. Use #12498545 for engines produced from 1997-2003.

These are the exact same bolts GM sells, just for alot less $.