Buick Big Block Pulley Kit Short Water Pump Power Steering (400, 430 & 455) Billet Aluminum Underdrive Pulley Kit for Buick Big Block Engines. These pulleys are MADE IN THE USA from 6061-T6 billet aluminum. We machine them at ultra high speeds to get an amazing surface finish. They are designed for use with stock power steering and alternator brackets. ---Alternator Pulley ---BUICK1ALT ---Grooves: 1 ---Diameter: 2.7" ---Overall Length: 1.7" (Including Cap) ---Water Pump Pulley ---BUICK2WP ---Grooves: 2 ---Diameter: 6.7" ---Overall Length: 2.25" ---Crankshaft Pulley ---BUICK2CR ---Grooves: 2 ---Diameter: 5.4" ---Overall Length: 1.95" ---Bolt Pattern: 6 Bolt Material: 6061-T6 Billet Aluminum Made in the USA!.
