Vortech Supercharger System - V-7 YSi - Low Mount - 50mm Cog - Polished (Big Block Carbureted Chevy) 4GA218-068
Polished Low-Mount V-7 YSi 50mm Cog-Drive Supercharger System for Carbureted Big Block Chevy
The :contentReference[oaicite:0]{index=0} V-7 YSi Low-Mount Supercharger System (PN 4GA218-068) is a high-end, competition-focused forced-induction solution engineered for carbureted Big Block Chevrolet engines. Finished in a show-quality polished configuration, this system combines extreme airflow capability with a 50mm wide cog-drive system for absolute belt control under high RPM and sustained boost.
This is a universal-style supercharger system intended for experienced builders who demand maximum mechanical reliability and future scalability. At its core is Vortech's flagship V-7 YSi centrifugal supercharger, making this system ideal for aggressive street/strip builds and full race applications where serpentine belt limitations are unacceptable.
Verified & Potential Fitment
This system has been verified to fit 1964-1972 Chevrolet Chevelle and Malibu models equipped with a cowl induction hood. Depending on intake manifold selection, minor underside hood support modifications may be required.
While the system may fit additional Big Block Chevy platforms, those applications have not been formally confirmed and should be evaluated during mock-up.
Performance Expectations
Horsepower gains depend on boost level, engine displacement, volumetric efficiency, and supporting modifications, but typical improvements range from 30-75%+. With the supplied pulley ratio, this system produces approximately 5-6 PSI at 5,000 RPM on a mildly modified 454 cubic-inch Big Block Chevy.
V-7 YSi Supercharger Technology
The V-7 YSi is Vortech's highest-capacity centrifugal supercharger, engineered for extreme airflow and sustained high-speed operation. This unit features clockwise (CW) rotation and a straight discharge, making it ideal for large-displacement engines and future high-boost or race-only upgrades.
Included Components
- V-7 YSi supercharger with 3.33" pulley (CW rotation, straight discharge)
- Cast aluminum supercharger mounting bracket with all required hardware
- Twin 1/2" thick billet aluminum mounting plates for rigid supercharger attachment
- Supercharger drive system, including:
- Belt tensioner with dual-bearing billet aluminum idler pulley
- Billet aluminum accessory-drive crank pulley (3-groove) with hard-anodized finish
- Crank pulley spacer for long water-pump spacing
- Billet aluminum supercharger crank pulley, hard-anodized, 7" diameter
- Provisioning for 36mm or 50mm wide 8mm-pitch cog drive
- 3.5" diameter cast aluminum discharge tube assembly with clamps, silicone sleeves, and hardware
- Supercharger oil feed assembly
- Supercharger oil drain assembly
- Cast aluminum carburetor enclosure assembly for 4150-style Holley or Demon carburetors
- Enclosure includes front and rear -8 fuel inlet ports, multiple pressure/vacuum ports, linkage arms, splined shaft, and left/right-hand spherical rod ends for throttle connection and adjustment
Fuel System Requirements
- High-volume fuel pump (installer supplied)
- Properly jetted 4150-style carburetor with mechanical secondaries
- Optional fuel line kits available separately for clean, high-flow plumbing
50mm Cog Drive Advantages
The 50mm wide cog-drive system provides zero belt slip under extreme load, making it the preferred drive method for high-RPM Big Block Chevy builds. This setup ensures consistent boost delivery, superior durability, and precise power transfer in competition environments.
Installation Notes
- Estimated installation time: 4-10 hours, depending on application
- Professional installation strongly recommended
- Custom fuel system setup and tuning required
Quick Specs
- Manufacturer: Vortech Superchargers
- Part Number: 4GA218-068
- Engine Type: Carbureted Big Block Chevy
- System Type: Complete Supercharger System
- Supercharger: V-7 YSi
- Mounting Style: Low Mount
- Drive Type: 50mm Cog Drive
- Finish: Polished
- Boost Level: ~5-6 PSI @ 5,000 RPM (454" engine)
Emissions & Legal Notice
- NOT AVAILABLE OR LEGAL FOR SALE IN CALIFORNIA
- Systems are NOT CARB legal and are legal in California only for racing vehicles which may never be used, registered, or licensed for use upon a highway
- Installation on emissions-controlled vehicles driven on public roads is likely to violate U.S. federal emissions law
FAQs
- Is this a complete system or a tuner kit?
This is a complete supercharger system and includes the carburetor enclosure. Fuel pump and carburetor must be supplied by the installer. - What makes the V-7 YSi ideal for Big Block Chevy builds?
Its massive airflow capacity, durability at high RPM, and compatibility with cog drives make it ideal for large-displacement and race-oriented engines.
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Vortech Superchargers dealer with deep experience supporting Big Block Chevy and race-level supercharger builds. We help ensure correct system selection, upgrade compatibility, and expert support from purchase through final tuning.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
