I'd be very careful. The difference is probably in the spark plug tube and o-rings. When I rollerized my 2012 Griso, I received the wrong kit initially, and the valve covers leaked oil like the Exxon-Valdez! Guzzi made and A, B, and C kit, with slightly different parts for the running changes made to the 4 Valve Griso during it's production run. Griso Getto would be the place to go for a final answer to your question.