There are two types of electric conversions kits available: custom kits that are tailored to a specific vehicles models, and universal kits that can be installed in a variety of vehicles. (treehugger.com)
Basically, electric conversion involves removing the entire internal combustion engine from a vehicle, installing an electric motor in its place, and also adding a large bank of batteries. (treehugger.com)
Here are some online forums about electric conversions: Electric Vehicle Discussion List, DIY Electric Car Forums, EVWorld. (treehugger.com)