Yes, it was a factory engine choice in the later years. They are 4 cycle engines, unlike the more common detroits. Have it checked thoroughly because parts are probably scarce. I know that manifolds are readily available, i was researching for a boat this spring with a pair. They were poorly suited to sportfish applications, run hard to plane heavy boats, the heat bolts stretched and head gaskets failed. The ones in displacement and semi displacement boats faired far better.