Isky Cams Valve Springs (Blue) - Outer w/ Damper (Hydraulic/Solid Cams) - 1.260" O.D., .886" I.D., 130 lbs. @ 1.750" Seat Pressure, 320 lbs. @ 1.200" Open Pressure, 350 Rate Per Inch, 1.150" Coil Bind, .550" Max Lift 01207 The rolled rim shell is

The rolled rim shell is designed to absorb impact and not leak air

Fits models without fender flares

Fuel Temp: 0v = -40 Fahrenheit

Note: Lifters are included with Edelbrock Performer-Plus and Performer RPM camshafts

1984-1995 GMC C2500

Isky Cams Valve Springs (Blue) - Outer w/ Damper (Hydraulic/Solid Cams) - 1.260" O.D., .886" I.D., 130 lbs. @ 1.750" Seat Pressure, 320 lbs. @ 1.200" Open Pressure, 350 Rate Per Inch, 1.150" Coil Bind, .550" Max Lift 01207 The rolled rim shell isIsky Valve Springs are world famous for their reliability and long life. As the world's largest racing, performance, and economy cam manufacturer, Isky maintains a dynamometer testing program for constant improvement of camshaft and valve train design. These tests are conducted daily in Isky's new enlarged dyno facility. To properly evaluate and prove the efficiency of Isky racing cams and valve train components, Isky maintains a continuous engine