Shop with Blessed Performance for the PPE Valve and Spring Kit for 2001 to 2016 6.6L Duramax diesel pickups.
HIGHLIGHTS:
- 21-4N Super Alloy, Stellite-reinforced exhaust valves
- All valves are fully nitridated with increased abrasion resistance
- CNC machined chromoly spring seats and retainers
- Upgraded tapered valve springs provide faster response and eliminate valve float at high RPMs
- Springs rated to 126 lbs at installed height
- Can handle 60+ lbs of boost