PROFORM Lightning-Bolt Mini Alternator 100 AMP with 10SI Adapter Kit
Highlights
- Lightweight 7 lb Design
- Generates Over 100 AMPs
- Includes 10SI Adapter Mount
- 1-Wire Hook-Up
PROFORM Lightning-Bolt 100 AMP Mini Alternator with 10SI Adapter Kit.
The PROFORM Lightning-Bolt 100 Amp Mini Alternator is truly a technological breakthrough. Weighing in at almost 40% lighter than a 10SI, this alternator still manages to generate a whopping 80+ amps at idle and over 100 amps at the top end. Its 7 lb, 98mm stator size puts out the kind of amps that are needed on the street while still being light enough for the drag strip. And let's not forget about its unique aluminum housing that is sure to turn heads. Not only does it look good, but it also delivers on both fashion and function. This 12-volt, 1-wire hookup alternator includes a V-belt style pulley and a billet aluminum adapter kit that allows it to fit a standard 10SI mount, making it easy to remove and replace. If you're in the market for an alternator, the Proform Lightning-Bolt Universal 100 Amp Mini Alternator should be on your radar.
Features and Benefits:
- Billet Aluminum Adapter Kit
- Fits Standard 10SI Mount
- Mini-Style, 12-Volt
- Unique Lightning-Bolt Case
- 1-Wire Hookup with Internal Regulator
- 2.7” V-Belt Pulley
- 100 AMP Internal Fan
- Only Weighs 7 Pounds
Vehicle Fitment:
- 1965-1973 Mustang
- 1970-1979 F-100
- 1966-1977 Bronco
- 1960-1987 C10
California Residents: Proposition 65 Warning
Related Categories: Mustang Alternators & Generators, Restomod Engine, F-100 Restomod Engine, C10 Restomod Engine, C10 Alternators
Installation Difficulty

Intermediate skill is required for this installation.
Installation Instructions
Vehicle Fitment
This product will fit the following Bronco years:
This product will fit the following C10 years:
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
- 1980,
- 1981,
- 1982,
- 1983,
- 1984,
- 1985,
- 1986,
- 1987,
This product will fit the following F-100 years:
- 1948,
- 1949,
- 1950,
- 1951,
- 1952,
- 1953,
- 1954,
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
This product will fit the following Mustang years:












