Looking To Buy Snowblower - Engine Size?

Hi, I've been looking at purchasing one of these snow blowers; one has a 254cc and the other has a 291cc engine. Product Comparison Page (http://www.homedepot.com/p/compare/?errorURL=ProductAttributeErrorView&langId=-1&storeId=10051&catalogId=10053&prodComp_0=204266986&prodComp_1=204266988&keyword=ariens+snow+blower) Would 37cc make much of a difference between these snow blowers? I would like to get the cheaper one, but if it's not going to perform well due to a smaller engine and I see if I can get the other one with a larger engine.