Trend Performance Pushrod - 7.400 in Long - 5/16 in Diameter - 0.105 in Thick Wall - Ball Ends - Chromoly 54111111 Calibration kit

Calibration kit

340 lb/in Rate

90 Degree Outside Bend

Big Block Chevy / GM LS-Series

1966-1969 Chevrolet Caprice

Trend Performance Pushrod - 7.400 in Long - 5/16 in Diameter - 0.105 in Thick Wall - Ball Ends - Chromoly 54111111 Calibration kitProduct Description: Pushrod 7. 400 in Long 5 16 in Diameter 0. 105 in Thick Wall Ball Ends Chromoly Sold Individually In 1993 SpinTron emerged, launching a tool to do meaningful research into valve train testing and technology. This testing exposed profound inadequacies in pushrod design. These inadequacies amazed SpinTron creator Bob Fox and his collaborator, the late Randy Dorton. Pushrod design changed irrevocably with Fox establishing his pushrod