COMP Cams 19054-16 Ultra-Gold ARC Rocker Set w/1.7 Ratio for 77-92 Ford 289-351W

Ultra ARC Rocker Set w/ 1.7 Ratio for '77-'92 Ford 289-351W w/ 5/16" Stud The Comp Cams Ultra ARC Aluminum Series Rocker Arms increase engine power, improve valvetrain stability, and enhance oiling efficiency. Their extruded design—developed using FEA analysis—creates a stronger, stiffer rocker body without adding unnecessary weight. The ARC series rocker arms feature an Arced, Recessed, Contoured design delivers an optimal strength-to-weight ratio. Backed by a Lifetime Warranty—buy them once and use them forever. Engineered for applications running up to 700 lbs of open spring pressure.