Vortech Small Block Chevy Carbureted Supercharger Kit 4GP218-050L

Vortech V-3 Si-Trim Supercharger Kit for Carbureted Small Block Chevy Engines

The Vortech 4GP218-050L entry-level centrifugal supercharger kit is designed for carbureted small-block Chevy builds. Its V-3 Si-Trim supercharger adds forced induction using a carburetor-compatible configuration, with application-specific supporting components and clearance checks required.

Key Specifications

• Manufacturer part number: 4GP218-050L
• Supercharger model: V-3 Si-Trim
• Centrifugal supercharger design
• Natural/satin finish
• Approximately 5 psi at 5,500 rpm on a mildly modified 350 engine; actual boost depends on the engine combination.
• Designed for a Holley 4150-type square-bore carburetor with a 5.125-inch neck.

Installation Requirements

This is an engine-based kit, not a guarantee of direct fitment to a particular vehicle. Verify engine configuration, accessory-drive alignment, intake-manifold arrangement, and hood clearance before ordering.

• Designed for a long-water-pump configuration with compatible accessory pulleys and brackets. Short-water-pump applications require conversion.
• Requires a suitable blow-through four-barrel carburetor with mechanical secondaries and appropriate fuel-system setup.
• A boost-referenced fuel pump, compressor bypass valve, and application-specific accessory belts are required separately.
• Carburetor calibration and application-specific modifications may be necessary.

Not Included

Carburetor, fuel pump, bypass valve, air filter, and intercooler are not included. Confirm the complete kit contents and supporting-component requirements before installation.