2001-2016 GM 6.6L Duramax Valve and Spring Kit - Pacific Performance Engineering - 110090083

This is the valve and spring kit that comes standard with the PPE Cast Iron Cylinder Heads. Kit features straight valve springs with an installed pressure of 85-90 pounds, which offers higher responsiveness and better boost handling. All valves are fully nitridated, 21-4N super alloy exhaust valves.
The spring retainers and seats are made of case-hardened high-strength chromoly steel for superior wear resistance. The FKM valve seals are tailored to the Cast Iron Heads’ valve guides for a tight seal.
Each kit services two complete cylinder heads.
Kit includes:
16 intake valves
16 exhaust valves
32 springs
32 spring retainers
32 spring seats
32 sets of valve keepers
32 valve seals