Princess Valiant said Small block Crank pulley Single groove. allow 1/8 tolerance on vertical measurements ...was done on a car hood View attachment 1715273015 View attachment 1714639952 View attachment 1715273016 View attachment 1714639953 View attachment 1715273017 View attachment 1714639954 View attachment 1715273018 View attachment 1714639955 Click to expand...