Mr. Gasket 4977
Chrome-plated steel double-groove V-belt crankshaft pulley, 6.25" / 158.75 mm diameter, for Chevrolet Gen I V8 long-water-pump layouts.
Mr. Gasket 4977 is a chrome-plated steel double-groove crankshaft pulley. It is designed for V-belt accessory drives on Chevrolet Gen I V8 engines using a long water pump.
Application / fitment
The manufacturer lists 1969-1985 Chevrolet Gen I V8 applications with a long-water-pump accessory layout. Typical engines include 4.6 / 283, 5.0 / 305 and 307, 5.4 / 327, 5.7 / 350, and 6.6 / 400, subject to pulley alignment and accessory configuration.
- water-pump layout: long water pump
- groove quantity: 2
- belt type: V-belt
- outside diameter: 6.25" / 158.75 mm
- material: steel
- finish: polished chrome plating
Verify damper mounting pattern, pulley diameter, groove offset, and alignment with the water-pump and alternator pulleys. This part is not a torsional vibration damper and mounts to the existing harmonic balancer.
Technical information
- part type: crankshaft pulley
- groove quantity: 2
- diameter: 6.25" / 158.75 mm
- material: chrome-plated steel
- underdrive / overdrive: no
- installation hardware: not included
- UPC: 084041049778
- sale unit: 1 piece