USED IN OUR 1200WHP VR6 ENGINE!

Supertech designs and manufactures valve springs designed to do more than achieving the required pressure and lift. Our valve springs are designed to ensure natural harmonics of the spring for each application. Supertech springs are manufactured using superior materials in super clean chrome silicon vanadium alloy. Our springs are heat treated, stress relieved and shot peened to help improve the fatigue life of the spring.
 
Spring: SPR-TC25D/VR6
Type: Dual Spring
OutSpr.OD: 25.00mm
OutSpr.ID: 18.00mm
InnSpr.OD: 18.00mm
InnSpr.ID: 13.00mm
Press.Seat: 80lbs @36mm
Press.Open: 231lbs @12mm
Max Lift: 13.90mm
Coil Bind: 12 / 17mm
Rate: 12.60mm