Proform 66789 Chevy SB Engines Pushrod Lenght Checker Tool Fit 3/8" Rocker Stud

Proform 66789 Push Rod Lenght Checker for Chevy SB with 3/8" Studs

Part# 66789

Proper push rod length is absolutely critical for peak performance - minimizing bent or broken valve stems, guide wear, and energy-wasting valve side-loading friction. Fits all 1955-1986 Chevrolet Models with 3/8" Rocke Arm Stud