Howards 1.250 Valve Spring Kit Single w/Damper Shop Equipment 2009-2010 Hummer H3

2009-2010 Hummer H3

For Small Block Chevy using a small base circle cam

2004-2011 Ford F-350 Super Duty

1965 & Later

Howards 1.250 Valve Spring Kit Single w/Damper Shop Equipment 2009-2010 Hummer H3Product Description: Valve Spring Kit Single Spring Damper 411 lb in Rate 1. 160 in Coil Bind 1. 250 in OD Locks Chromoly Retainers The name Howards Cams has been synonymous with high performance camshafts since the 1950s. Howards Cams have always used on track experience to design the most powerful designs. This includes early Top Fuel favorites driven by Jack Chrisman and Larry Dixon Sr. Today we have even a greater group of experienced racers in