Proform 66789 Pushrod Length Checking Tool - Precision Measuring Tool for Engine Builders & Mechanics - Perfect for Automotive Repair & Performance Tuning

Characteristics. Proper push rod length is absolutely essential for maximum performance by minimizing bent or broken valve stems, valve guide wear and wasted side loading friction energy. Type – not adjustable. Nut Diameter – 38 in.. Color – Blue. Plastic material,