What is the difference between an automotive and a marine engine?
The duty cycles differs for automotive and marine engines. Marine engines run at a higher RPM for an extended period of time. Because of this, the valve train, including valves and springs, is different for a marine engine than for that of an engine used in an automotive application. Marine engines also use brass freeze plugs and head gaskets with stainless steel fire rings (unless unavailable for specific applications) to resist the effects of corrosion from the engine cooling system. Because boats operate on ever-changing water surface conditions, the oiling systems of their engines needs to be able to minimize the “sloshing” of the oil and a resulting irregular supply of oil at the pick-up tube in the oil pan. For this reason, marine engines use a more elaborate baffle system in the oil pan to keep oil levels more consistent in order to maintain a steady supply of oil to the various engine components.
I would like to encourage anyone wanting a quality replacement engine to consider Marine Reman Engines. Specifically the owner, Angel. A friend let his engine freeze and it cracked his block. We shopped for a new engine but it was more that the boat was worth. We found Marine Reman Engines and gave Angel a call. He knew the questions to ask us and we bought a remanufactured long block from him. He arranged shipping to Memphis. We transfered our parts to the new block and the engine runs fantastic. The quality of the engine was excellent. Everything looked new. I want to personally thank Angel for his help and advice. Oh Yeah, the price was excellent too. …