yeap the regular Savage X SS kit that you were looking at will have the engine, but you can buy a kit for a lot cheaper which doesn't have an engine if you want to add your own. I've been very pleased with the HPI nitrostar K4.6. It's made my nova rossi for HPI, and I think it does pretty good for a stock engine, but the lrp z28 is supposed to be wicked for the price. I sent you a PM with everything you'll need for the Savage X SS kit.