Cams Single Outer Valve Spring

The Comp Cams 910-16 valve spring is a performance upgrade designed for diesel engines. This single outer spring features a 1.354-inch outer diameter and a 0.940-inch inner diameter, with a spring rate of 380 lbs./in. and a closed force of approximately 150 lbs. It has an installed height of 1.85 inches and a coil bind height of 1.28 inches, with a maximum lift capability of 0.51 inches. These valve springs offer enhanced performance compared to stock, with a reported seat pressure around 90 psi, exceeding the factory rating of 71-79 lbs. They are recommended for applications with boost levels of 40 psi or higher. Installation may require shimming, with options including custom shims or 0.030" shims from Comp Cams. These springs are specifically noted as an upgrade for the 7.3L Powerstroke engine. The product is sold as a set of 16 springs.