The COMP Cams ID spring locator seat provides a hardened-steel inboard locating shoulder to center and retain valve springs, reducing head machining versus older outside-retaining cup styles. Built to handle extreme spring pressures and high RPM, the 4868 configuration lists a 1.350" outside diameter and a 0.515" inside diameter for accurate spring positioning in high-demand valvetrains.
COMP Cams ID Spring Seats 1.350 X 515 X