Upgrade the valves in your Duramax to these premium stainless intake/inconel exhaust valves, nitride coated and swirl polished for lasting quality in the most demanding conditions. Inconel is the highest quality material available for diesel exhaust valves. These are a direct replacement for factory Duramax valves, plus we use these top shelf valves in 100% of our new KDD/Mast Duramax cylinder heads. Don't forget to check out our valve spring upgrade kits, also used in our Duramax cylinder head program.
16 21-4N Stainless Intake Valves and 16 Inconel Exhaust Valves
32 USA Made high RPM rated beehive valve springs
32 tool steel valve spring retainers
32 spring seats
32 valve stem seals
64 valve locks (keepers)
Compatible with 2001-2016 Duramax.