Chevy Big Block Water Pump Pulley Long Water Pump (396-427-454) Billet Aluminum Water Pump Pulley for Chevy Big Block Engines with long water pump. 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. Note: Big Block Long Water Pumps (LWP) are 7.29" from face of water pump to block. Water Pump Pulley BBCL1WP Grooves: 1 Diameter: 6.2" Overall Length: 2.15" Material: 6061-T6 Billet Aluminum Made in the USA!.
