Description
GM 1-Wire Alternator, 140 Amps, Chrome Plated
Power your classic or performance build with the CVF Racing GM 1-Wire 140 Amp Alternator. Designed to work with CVF Racing pulley systems, this high-output alternator provides strong charging at low RPM and throughout the RPM range, giving you dependable electrical performance without sacrificing charging capability at idle.
Features:
- 140 Amp advertised output
- Engineered for strong low-RPM charging
- Simple 1-wire hookup
- 12V DC with internal regulator
- GM 10SI-style case
- Triple chrome-plated finish for a show-quality appearance
- High-quality insulating materials for dependable high-amp operation
- Includes steel alternator fan
- Includes steel V-belt alternator pulley
- Backed by the CVF Racing Lifetime Warranty
With 140 amps of available output, this alternator is an excellent choice for builds running electric fans, upgraded lighting, audio systems, and other high-draw accessories. The combination of a simple 1-wire design, reliable low-RPM charging, and brilliant chrome finish makes it equally at home on street-driven classics, muscle cars, hot rods, and custom builds.
Note: This alternator is imported and is not manufactured in the USA. CVF Racing stands behind it with our Lifetime Warranty and first-class customer service.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Customer Images
Technical Details
Alternator Output Dyno Chart
Our 140 amp GM 10SI alternators are engineered to deliver excellent charging performance across the RPM range, with strong output even at lower engine speeds. The graph below shows alternator output under both cold and hot operating conditions.

Installation Instructions
Additional Information
Product Type: |
Alternator |
Finish: |
Chrome |
Amperage: |
140 |
Make: |
Chevy |