Piston Ring Friction Measuring Tool 0-12 LB Digital Gauge Fit Bores 2.377-6.250 Inch Foamed Lined Hard Shell Case Proform Engine Camshaft Degree Wheel This Is a Refill Package

This Is a Refill Package For Proform P/N 68071 P

Features A Blue Male/HEI Type Cap And Rotor

280 Inches On Intake +

Sold As One Set Of 16

Piston Ring Friction Measuring Tool 0-12 LB Digital Gauge Fit Bores 2.377-6.250 Inch Foamed Lined Hard Shell Case Proform Engine Camshaft Degree Wheel This Is a Refill PackageMinimizing piston ring friction before blow by is one of the best ways to maximize engine efficiency. This tool accurately measures the pull of a ring in the bore for a quantitative measurement of friction as a function of gap and diameter. Get it right and get the trophy! Includes two expandable platforms for pulling, and a precision digital gauge for accurate readings. Sold individually. U. S. Pat. 8. 479. 570 Product Details: Piston Ring Friction