Isky Cams Valve Springs (Yellow) - Outer w/ Damper (Hydraulic Cams) - 1.260" O.D., .886" I.D., 115 lbs. @ 1.700" Seat Pressure, 268 lbs. @ 1.210" Open Pressure, 310 Rate Per Inch, 1.160" Coil Bind, .490" Max Lift 3550224-156- L Various Sizes

Various Sizes

Actual product may be different than image

These are must for any cable type throttle linkage using regular Holley or Dominator carburetors

Quadrajet M4M Carburetors

Isky Cams Valve Springs (Yellow) - Outer w/ Damper (Hydraulic Cams) - 1.260" O.D., .886" I.D., 115 lbs. @ 1.700" Seat Pressure, 268 lbs. @ 1.210" Open Pressure, 310 Rate Per Inch, 1.160" Coil Bind, .490" Max Lift 3550224-156- L Various SizesIsky 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