2001-2016 GM 6.6L Duramax Straight Valve Springs, Retainers, and Keepers Kit

Straight Valve Springs, Retainers, and Keepers Kit

This is the 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.

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:

• 32 springs
• 32 spring retainers
• 32 spring seats
• 32 sets of valve keepers