Kill Devil Diesel 6.0 / 6.4 Powerstroke Chromoly Pushrods When it comes to pushing the limits of the 6.0 and 6.4 Powerstroke, stock pushrods just...

Kill Devil Diesel’s Premium Hydraulic Lifters are the strongest, most reliable upgrade available for Powerstroke 6.0, 6.4, and 7.3L engines — all c...

THESE ARE INDIVIDUALLY SOLD PUSHRODS Upgrade the pushrods in your 6.0 with a set of KDD's track proven one piece chromoly pushrods.  We use these i...

KDD 110lb Polished Performance Valve Springs - USA Made Upgrade your valvetrain with KDD's USA-made 110lb Polished Performance Valve Springs. Desig...

This kit features premium USA Made beehive valve springs, tool steel retainers, locks, spring seats, and valve stem seals for your 2001-2016 Durama...

KDD spec heavy duty pushrods are a drop in replacement for the weak factory pushrods, add a set to your next build to prevent failure.  These are s...

Please note that the 100lb springs are currently on back order and may take 4-6 weeks to ship. By purchasing them, you acknowledge and agree to the...

Upgrade the valves in your Duramax to these premium stainless intake/inconel exhaust valves, nitride coated and swirl polished for lasting quality ...

KDD's chromoly pushrods are tough enough to handle anything you can throw at them, used in all of our Cummins engines built in house, these are mad...

Semi to High Performance Used for multiple applications such as Sportsman, Marine, LS and Factory Performance engines Provides approximately 170,0...

This kit includes KDD chromoly pushrods, and USA made KDD valve springs, available in 80, 100, and 120 lb increments!