2001-2016 GM 6.6L Duramax Valve and Conical Spring Kit - Pacific Performance Engineering - 110090080

Upgraded conical spring and valve kit for the 2001-2016 GM 6.6L Duramax. The conical valve springs with higher spring rate and the lighter weight of valve train components result in sharper response and eliminate valve float under high engine RPMs. These stiffer springs have an installed pressure of 125 pounds and handle 60+ psi of boost. All valves are fully nitridated and Stellite-Alloy-reinforced for superior durability and reliability.
The spring retainers and seats are made of high-strength chromoly steel to handle the increased spring pressure. 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 keepers
32 valve seals