COMP Cams Valve Springs Ford 4.6L 2 Valve Anniversary 2007 Chevrolet Silverado 2500 HD

2007 Chevrolet Silverado 2500 HD Classic LT Extended Cab Pickup

2011-2012 GMC Sierra 3500 HD SLE

Year Make Model Submodel 2008-2009 Hummer H3 Adventure 2008-2010 Hummer H3 Alpha 2006-2010 Hummer H3 Base 2009 Hummer H3 Championship Series 2008-2009 Hummer H3 Luxury 2007-2009 Hummer H3 X

and fuel economy

T1S-D03 street

COMP Cams Valve Springs Ford 4.6L 2 Valve Anniversary 2007 Chevrolet Silverado 2500 HDWith a . 550" maximum lift, these Beehive Valve Springs were designed for Ford 4. 6L and 5. 4L Modular 2 and 3 Valve engines. COMP Cams Beehive Valve Springs deliver increased valve train stability and a much lighter valve train. This is achieved with less spring pressure for better valve control and reduced weight of both the spring and retainer. The unique Beehive shape handles valve train stress more efficiently to eliminate damaging harmonics and