FEULING OIL PUMP CORP. Valve Sprint Shims 1217

Set up the valve springs correctly to match the open height spec to peak camshaft lift for optimum valvetrain stability and performance, Quality machined spring seat shims, Sold as a 2-pack; includes one each .015″ and .030″ thickness shim, Shims measure OD 1.200″, ID 0.570″, Made in the U.S.A.