Hutter Performance crank trigger wheel for Chevrolet small block or big block engines using standalone engine management systems. This wheel is 7.125" diameter with a 60 -2 tooth pattern. Precision laser cut from 3/16" steel, and then electro-nickel plated to give each wheel a unique, rust resistant coating. Includes MoTeC 4-wire hall effect crank sensor (3/8" fine thread).