Chevy Small Block Crankshaft Pulley - 3V Long Water Pump (283, 302, 305, 327, 350 & 400) Underdrive diameter for Increased Horsepower! This pulley has been CNC machined in the USA from a solid bar to ensure that it is balanced and runs perfectly true. We then hand polish each part to a mirror finish so that it really makes your engine stand out from the crowd. Don't spend hundreds or thousands of dollars building your engine and then throw an out of round pulley on the front of the crankshaft! Our billet aluminum pulleys reduce weight, increase horsepower and are balanced better than any chrome or steel pulley on the market. Technical Specs: Billet Aluminum 3 Groove V-Belt Crankshaft Pulley. Pulley Diameter: 5.
