1) V-Belt & Single Groove 2) Material: Aluminum 3) Surface Finish: Polished 4) Crankshaft Pulley 5) Outside diameter: 6 7/16" 6) Bolt circle: 2 3/4" 7) Center hole diameter: 1 1/8" 8) Compatible with Chevy BBC 396 427 454 1965-1968 9) 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.
