ARP 01-16 6.6L GM Duramax Diesel Head Stud Kit Duramax LBZ They are center-less ground to

They are center-less ground to assure perfect concentricity

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ARP 01-16 6.6L GM Duramax Diesel Head Stud Kit Duramax LBZ They are center-less ground toThe ARP Diesel Head Stud Kit 230 4201 is a must have in any high performance 2001 2016 GM 6. 6L Duramax. To overcome head gasket failures that can occur in diesel engines in these high performance applications, industry leader ARP has introduced extra heavy duty head studs for the popular GM LB7, LLY, LBZ, LMM, LML Duramax powerplants. These ARP studs are rated at 220,000 psi tensile strength, and provide the clamping force required to keep cylinder