Well there are a few electric motors out there rated the same way as the glow engines. Most people use a formula to figure out what motors to use.
These have been getting good reviews on the forums.
http://www.hobbypartz.com/96m605-big...020-670kv.html
http://www.hobbypartz.com/96m606-big...030-400kv.html
Of course you will also need the ESC's and battery or batteries.
Buzz.