Isky Cams Valve Springs (Natural-Orange/Yellow) - Dual w/ Damper (Solid Cams) - 1.005"-1.430" O.D., .725"-1.070" I.D. H774001S a smaller seat size will

a smaller seat size will flow less fuel at a given pressure

Works with stock manifolds

Ford Fullsize Truck 2004-11

In-Line Brushless Spur Pro+ Fuel Pump

These shocks have maintained their ability to provide the highest levels of performance from a fixed valve twin-tube shock by evolutionary improvements in production methods and component design

Isky Cams Valve Springs (Natural-Orange/Yellow) - Dual w/ Damper (Solid Cams) - 1.005"-1.430" O.D., .725"-1.070" I.D. H774001S a smaller seat size willIsky 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