Both the GT500 and Raptor R share overall performance motor platforms. Mustang Spare Depot routinely lists five.2L and 5.8L engines from both of those versions. https://2014-gt500-engine-for-sal30741.blogdomago.com/37223234/camaro-pieces-also-readily-available-â-right-hereâ-s-what-you-need-to-know