Howards Single / Damper Valve Spring - 415 lb/in Spring Rate - 1.150 in Coil Bind - 1.265 in OD (Set of 16) HSCHD11 Specifically designed for 1997-up Gen-3

Specifically designed for 1997-up Gen-3 Chevy Corvettes

The same gauge FOX technicians use to properly read nitrogen levels without sustaining pressure loss from 0 to 600 psi

Stainless steel button head hardware adds a performance look to the large center ring

Improved Cooling Properties

Howards Single / Damper Valve Spring - 415 lb/in Spring Rate - 1.150 in Coil Bind - 1.265 in OD (Set of 16) HSCHD11 Specifically designed for 1997-up Gen-3Product Description: Valve Spring Single Spring Damper 415 lb in Spring Rate 1. 150 in Coil Bind 1. 265 in OD Set of 16 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 Circle Track,