SELECT YOUR VEHICLE
  • PSC pulley, front angle.
  • Silver PSC 5.5" Diameter Dual Groove V-Belt Crankshaft Pulley on a white background.
  • Engine belt and pulley system on a white background
  • Black pulley wheel on a white background
  • Black pulley wheel on a white background
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Small Block GM Serpentine Pulleys – Crankshaft & Water Pump Options

Small Block GM Serpentine Pulleys – Crankshaft & Water Pump Options

$89.99
$89.99
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Part Number: PP3400

Pulley Type
Diameter
Reduction

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.

Choose from crankshaft and water pump options to match your setup:

  • PP3400: Crankshaft Pulley – 3.125" – 15% Reduction
  • PP3401: Crankshaft Pulley – 3.9" – 30% Reduction
  • PP3402: Water Pump Pulley – 5" – Short Water Pump
  • PP3403: Crankshaft Pulley – 5" – Short Water Pump (Use with PSC HWKRP1)
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About:About:

Why you’ll love it

  • Built tough for Small Block GM engines
  • Precision-machined for smooth belt operation
  • Options for reduction to fine-tune performance
  • Perfect for street performance, custom builds and circle track

Tech InfoTech Info

Heads‑up for installers

Check your belt length and water pump type before ordering. PP3403 works best with PSC HWKRP1.

Fitment

Small Block GM engines (verify short water pump compatibility where noted).

Specs

  • PP3400: 3.125" Crankshaft Pulley – 15% Reduction
  • PP3401: 3.9" Crankshaft Pulley – 30% Reduction
  • PP3402: 5" Water Pump Pulley – Short Water Pump
  • PP3403: 5" Crankshaft Pulley – Short Water Pump – Use with PSC HWKRP1

What’s included

One (1) Crankshaft Pulley

California Prop 65 Warning

California Prop 65 Warning

This product can expose you to chemicals including lead and di (2-ethylhexyl) phthalate, which are known to the State of California to cause cancer, birth defects or other reproductive harm.

For more information, go to www.P65Warnings.ca.gov