Todays high RPM Duramax's reek havoc on the OE valvetrain. Increased spring pressures and high lift cams add tremendous stress to the rocker shafts, stands and OE hardware. DHD recommends upgrading to Manton's high strength ARP bolt kit to help limit deflection and breakage.
Features:
Fitment:
2001-2016 Duramax
LB7 LLY LBZ LMM LML
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