X260 Series Head Stud Kit 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML XDP Xtreme Diesel Performance Early Cummins 5.9 In the middle of the

In the middle of the VIN code

valve spring pressures

S&S Diesel Motorsport products carry a two-year unlimited-mileage warranty from the date sold

a 63mm 7x7 SXE style compressor wheel with extended tip technology

This flex is not visible to the naked eye and while your factory pushrods won't show signs of failure

X260 Series Head Stud Kit 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML XDP Xtreme Diesel Performance Early Cummins 5.9 In the middle of theThe XDP X260 Series Head Stud Kit XD3009HS is a must have for your high horsepower 2001 2016 GM 6. 6L Duramax LB7 LLY LBZ LMM LML. The XDP head studs are the ideal upgrade for any high performance, racing, or sled pulling application. These studs are more durable and will not stretch like the factory bolts. The X260 Series head studs feature an upgraded 260,000 psi tensile strength to ensure the cylinder heads on your engine stay locked in place under