Very addicting for a motorhead. I cant stop buying engines. Im stacking them back, because price only goes up. I have 5 CG engines and two 6 hp 4 stroke tiller motors that need bodies. An i plan on getting at least one more steel sleeve from auto_part_214 on ebay. Which of course means more than one. Lol. Loving the steel sleeve engines. Good power and same size case as the others.