Billet Aluminum Chevy Corvette Small Block V-Belt Crankshaft Pulley (3V) 3 Groove crankshaft pulley for Chevy corvette small block engines 283, 302, 327, 305, 350 & 400 CID. Designed for use with original Corvette power steering and alternator brackets. CHEVY 283, 302, 327, 305, 350 AND 400 ENGINES WITH CORVETTE WATER PUMP ---1971 - 1982 Chevy Corvette Small Block Engines with original Corvette Brackets and Water Pump Diameter: 5.4" Overall Length: 2.2" Grooves: 3 Bolt Pattern: 3 Bolt Bolt Circle: 3.2" (2.7" Center to Center) Pilot Diameter: 1.1".
