* Magnuson: Known for high-quality, often more expensive, superchargers.
* Vortech: Another reputable manufacturer offering various supercharger systems.
* ProCharger: A leading brand in the supercharger market, likely to have options for the 4.3L.
It's important to note that availability can change, and some companies may focus on certain model years of the 4.3L more than others. You'll need to check the specific manufacturer's website to verify compatibility with your particular vehicle year and trim.
