Wagler C6643 Dual Valve Spring Kit with Steel Retainers | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wagler Dual Valve Spring Kit W/ Steel Retainers Features:

• 145lb Seat Pressure at 1.650 Installed Height
• Coil Bind at 1.090
• Works With Factory Spring Shim
• Comes With Steel Retainers
• Rated to Handle 5000 RPMs

Regain Power and Improve Your Drive Quality

The Wagler Dual Valve Spring Kit comes with Steel Retainers to help the cylinder heads control air flow throughout the cylinders and fuel deployment. Bringing the power back to your vehicle and gain your engine's performance with the dual valve spring kit will help in race settings or around the town. With this dual valve spring kit to help your vehicle maintain a perfect air too fuel mixture into the combustion your drive quality will improve from the old worn out model once you've upgraded and installed to Wagler's model.

Capable to Handle High RPMs

Keep your engine in its top performance with Wagler's dual valve spring kit with steel retainers and feel the difference in your drive comfort. This dual valve spring kit boosts your vehicle's performance and helps reach higher RPMs, making your vehicle able to handle up to 5000 RPMs. This increased capability will help your vehicle perform in high speed race settings, giving your vehicle a more sporty edge performance to beat the competition and maintain the power for important race events.

Additional Parts Note: We recommend using WCPC6664 Push Rods with them, these are sold separately.

Vehicle Fitment: 2001-2016 GM Duramax 6.6L

Year Ranges	Make	Model	Series	Engine
2001-2010	GM/Chevrolet/GMC	Silverado/Sierra	2500HD/3500HD	6.6L Duramax LB7/6.6L Duramax LBZ/6.6L Duramax LLY/6.6L Duramax LMM

Property	Values
Year Ranges	2001-2010
Make	GM/Chevrolet/GMC
Model	Silverado/Sierra
Series	2500HD/3500HD
Engine	6.6L Duramax LB7/6.6L Duramax LBZ/6.6L Duramax LLY/6.6L Duramax LMM