These ARP head studs for your 2001-2016 GMC/Chevy 6.6L Duramax are rated at 220,000 psi tensile strength, and provide the clamping force required to keep cylinder heads from lifting due to higher combustion pressures. Highly recommended for tuned Duramax’s.
If you're a racing enthusiast, then these head studs are for you! Using custom aged 625+ material, these head studs can handle over 260,000psi tensile strength! Fits your 2001-2016 GMC/Chevy 6.6L Duramax (LB7/LLY/LBZ/LMM/LML Motors)