Whipple 3.50" 10-Rib 5-Bolt Supercharger Pulley 3.8L SCP-103500-5
Overview
The Whipple 3.50" 10-Rib 5-Bolt Supercharger Pulley is designed for high-horsepower builds running a Whipple 3.8L supercharger where belt stability, durability, and precision matter most. CNC-machined from 6061-T6 billet aluminum and finished in a hard-coat black anodize, this pulley is engineered to handle extreme RPM and boost levels with confidence.
Whipples advanced pulley design incorporates lightweight pocketing to reduce rotating mass while retaining structural strength, along with an integrated belt-guard feature to help control belt tracking under aggressive acceleration. Each pulley is laser-engraved with its running diameter for quick identification during tuning or pulley swaps.
Built specifically for 10-rib belt systems, the 3.500" pulley is ideal for applications where controlled boost reduction or fine-tuning blower speed is required. As a general guideline, every .125" change in pulley diameter equates to approximately 1 PSI of boost, though actual results will vary depending on engine combination and airflow.
Performance Highlights
- Precision CNC-machined from 6061-T6 billet aluminum
- 3.500" running diameter for Whipple 3.8L superchargers
- 10-rib design for superior belt grip at high RPM
- 5-bolt mounting pattern
- Hard-coat black anodized for wear and corrosion resistance
- Lightweight pocketed design reduces rotating mass
- Integrated belt guard helps prevent belt wandering
- Laser-engraved diameter for easy identification
Quick Specs
- Part Number: SCP-103500-5
- Pulley Diameter: 3.500 inches
- Belt Type: 10-Rib
- Mounting: 5-Bolt
- Material: 6061-T6 Billet Aluminum
- Finish: Black Anodized
- Application: Whipple 3.8L Supercharger Only
FAQs
How much boost change does a 3.50" pulley make?
A common rule of thumb is roughly 1 PSI of boost per .125" pulley size change. Actual boost levels will vary based on engine setup, airflow, and supporting modifications.
Can this pulley be used on other Whipple superchargers?
No. Whipple supercharger pulleys are application-specific. This pulley is designed exclusively for Whipple 3.8L superchargers and should not be used on other models.
Why Buy from Beefcake Racing?
At Beefcake Racing, we work directly with Whipple Superchargers to provide genuine, race-proven components backed by expert technical support. Whether youre dialing in boost for a street build or optimizing a track setup, our team is here to help. Call 1-855-827-7223 or email sales@beefcakeracing.com.
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