Seller notes

ARP 134-3610 Pro Series High Performance Head Bolt Kit for 2005 and Newer LS Engine Be sure to note which head bolts you need as GM used two different style LS head bolts 1997-2003 heads used QTY 8 155mm Bolts, QTY 2 100mm bolts, and QTY 5 45mm bolts 2005-2013 heads used QTY 10 100mm bolts, and QTY 5 45mm bolts These head bolts are manufactured by ARP from premium 8740 chrome moly steel and heat treated to 200,000 psi. They are thread rolled after the heat treating process, which vastly improves...

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