These wire lock pins have a pin and cotter in one assembly. The wire loop is pulled over the pin end to lock it in place or remove it. Eliminates cotter pin loss. Headed shank formed of carbon steel.

For many years camshaft technology was limited not by any lack of knowledge on the part of lobe profilers but by valvespring technology that just wasn't up to stabilizing aggressive lobe designs. But ...

"These days, almost never," proclaims Billy Godbold, Comp Performance Group Valvetrain Engineering Group Manager. For sure, anytime you can reduce the mass of the valves, valvesprings, valve locks, ...