GATOR FASTENERS HEAVY DUTY HEAD STUD KIT, CHEVY/GMC (2001-16) 6.6L DURAMAX DIESEL - HSK66 Year Applicable:2001-2004 1/8-NPT ports are pre-drilled and

1/8-NPT ports are pre-drilled and tapped

Tests with the same tune and fuel quantity showed increased power output and a decrease in peak EGT's

Part Number: 3632306811

resisting water and scratches

2001-2004 GM Duramax 6

GATOR FASTENERS HEAVY DUTY HEAD STUD KIT, CHEVY/GMC (2001-16) 6.6L DURAMAX DIESEL - HSK66 Year Applicable:2001-2004 1/8-NPT ports are pre-drilled andDescription The Gator Fasteners Head Stud Kit 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, Gator Fasteners has introduced heavy duty head studs for the popular GM LB7, LLY, LBZ, LMM, LML Duramax powerplants. These studs are rated at 220,000 psi tensile strength, and provide the clamping force required to keep cylinder heads