1) For Chevy Small Block SBC With A Long Water Pump. 2) Single Belt Groove Crank Pulley. 3) High-Quality Polished Aluminum Finish. 4) 5/8" Pilot Hole, 6 9/16" In Diameter. 5) Bolt Pattern Is 2 3/4". 6) Package Includes: As Shown In Our Pictures. This Item Doesn't Come With Installation Guides. We Highly Recommend Professional Installation. We Will Ship Your Package From Different Warehouses.
