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 1984-1995 GMC C2500

1984-1995 GMC C2500

all models and engines with Automatic transmission

The top engine builders in the racing world rely on Borla exhaust for maximum performance

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

0:1 AFR OBDII Output Lambda values from

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 1984-1995 GMC C2500Isky 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