PSC Crankshaft Pulley 3.9" Serpentine 30% Reduction Small Block GM PP3401

Crankshaft pulley 3.9" serpentine 30% reduction small block GM.

These PSC serpentine pulleys are built for Small Block GM engines and designed to keep your accessory drive running smooth and efficient. Whether you're dialing in reduction for performance or just want a clean, reliable setup, these pulleys deliver. Precision-machined for a perfect fit, they're tough enough for street builds and custom projects alike.

• Part number: PP3401
• Pulley Type: Crankshaft; Diameter: 3.9"; Reduction: 30% Reduction