Vortech Superchargers 8-Rib Pulley Pack 2.75" Non-Underdrive (1986 Ford Mustang / 1987 Ford Mustang / 1988 Ford Mustang / 1989 Ford Mustang / 1990 Ford Mustang / 1991 Ford Mustang / 1992 Ford Mustang / 1993 Ford Mustang 5.0) 8E018-275
2.75" 8-Rib Non-Underdrive Pulley Pack for 1986-1993 Mustang 5.0
The Vortech Superchargers 8-Rib Pulley Pack (PN 8E018-275) is engineered specifically for 1986-1993 Ford Mustang 5.0L applications equipped with non-underdriven accessories. This pulley package is ideal for enthusiasts upgrading belt drive systems or fine-tuning boost levels on their Fox Body Mustang.
Whether you're converting from a 6-rib setup to an 8-rib or 10-rib configuration, or simply looking to increase or decrease boost pressure, this Vortech pulley pack includes the necessary components to properly configure your supercharger drive system while maintaining reliable belt wrap and traction.
Purpose-Built Pulley System
Designed around Vortech's proven drive system geometry, this 2.75" non-underdrive pulley package allows precise boost control without altering factory accessory speeds. The 8-rib design provides increased belt contact area over traditional 6-rib systems, helping reduce slip under higher boost conditions.
Performance & Capability
- Pulley Diameter: 2.75 inches
- Belt Drive: 8-Rib
- Accessory Configuration: Non-underdrive
- Boost Adjustment: Enables precise boost tuning
Application Notes
This pulley pack is intended for 1986-1993 Mustang 5.0L vehicles using non-underdriven accessories. Proper belt length and supporting components should be verified when changing pulley sizes or rib configurations to ensure optimal fitment and performance.
Quick Specs
- Manufacturer: Vortech Superchargers
- Part Number: 8E018-275
- Product Type: Supercharger Pulley Pack
- Pulley Diameter: 2.75"
- Belt Type: 8-Rib
- Accessory Drive: Non-Underdrive
Emissions & Legal Notice
- NOT AVAILABLE OR LEGAL FOR SALE IN CALIFORNIA
- For off-road and competition use only
- Installation on emissions-controlled vehicles driven on public roads may violate U.S. federal emissions law
Fitment
- 1986 Ford Mustang 5.0L
- 1987 Ford Mustang 5.0L
- 1988 Ford Mustang 5.0L
- 1989 Ford Mustang 5.0L
- 1990 Ford Mustang 5.0L
- 1991 Ford Mustang 5.0L
- 1992 Ford Mustang 5.0L
- 1993 Ford Mustang 5.0L
FAQs
- What is the benefit of upgrading to an 8-rib pulley system?
An 8-rib system provides increased belt contact area, reducing slip and improving reliability when running higher boost levels. - Is this pulley pack compatible with underdrive accessories?
No. This pulley pack is designed specifically for engines with non-underdriven accessory configurations.
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Vortech Superchargers dealer with deep experience supporting Fox Body Mustang supercharger builds. From pulley selection to complete boost system tuning, we help ensure every component is correctly matched for reliable, repeatable performance.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

