This is a 60 CC engine.Lubed and put away. steal at this price. I have had several years and was barley used 15 flights for a large warbird. has 4.8 ignition will take 6 volt if you buy a new ignition. I also have new 4200 MA 4.8 battery to go with it. Last ran about a year ago and is a beast!!!Great compression and wrap around muffler cost $150 by itself so this is a steal. $20 shipping.