Chevy Small Block Power Steering Pulley (283, 302, 305, 327, 350 & 400) Deep offset power steering pulley for use with our big block power steering bracket part number 454-PSBRKT-SWP. This pulley may work in other applications, but we recommend you double check the offset before ordering. Billet Aluminum 1 Groove V Belt Power Steering Pulley for Chevy Small Block Engines. Designed for use with stock power steering and alternator brackets. Pulley Diameter: 5.8" Overall Length: 1.75" Offset: 1.37" from Front of Pulley Shaft: 5/8" Keyway fit Material: 6061-T6 Billet Aluminum Made in the USA!.