Description
GM 1-Wire Alternator, 140 Amps, Stealth Black
Get the charging power your build needs without sacrificing performance at idle with the CVF Racing GM 1-Wire 140 Amp Alternator. Designed to work with CVF Racing pulley systems, this alternator delivers strong low-RPM charging throughout the RPM range—ideal for street-driven classics and performance builds with increased electrical demands.
Features:
- 140 Amp advertised output
- Engineered for strong low-RPM charging
- Simple 1-wire hookup
- 12V DC with internal regulator
- GM 10SI-style case
- Stealth Black finish for a clean, aggressive look
- High-quality insulating materials for dependable high-amperage performance
- Includes steel alternator fan
- Includes steel V-belt alternator pulley
- Backed by the CVF Racing Lifetime Warranty
With 140 amps of output, this alternator is an excellent upgrade for builds running electric fans, upgraded lighting, audio systems, and other high-draw accessories while maintaining dependable charging at lower engine speeds.
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: |
Stealth Black |
Amperage: |
140 |
Make: |
Chevy |