Universal diesel
Lonnie; I used to have an '82 C-30 with the 5411. It ran well, had plenty of power, even with a two-blade folding prop and only sipped fuel. Keep the thermostat clean and your fuel tank above a quarter tank full. Take the fuel draw tube out of the tank and check for a small screen on the end; if one is there, cut it off and throw it away. Install a squeeze bulb between the fuel tank and the pump for bleeding the system and make sure the water pump is the newer kind. That said, they're great little engines.