Duramax 6.6L (2001-2016) ARP2000 Head Stud KitDuramax 6. 6L (2001 2016) ARP2000 Head Stud Kit ARP Head studs are a must if you are running in excess of 45psi of boost on your Duramax Diesel. Good insurance against head gasket failure. It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, there's not a better stud setup on the market today. ARP uses a premium grade 8740 alloy that is
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