Check out Suzuki Lightning Conversions based out of Florida(
RePower your Suzuki Samurai with a V6 or V8 Engine Conversion from Suzuki Lightning Conversions) they sell bare bones and full kits to install a V-6 or V-8 into Suzukis. If you've got the money, that would be the way to go. Unless you're running monster tires, a V-6 is more than enough muscle.
