IMPORTANT: Remanufactured Marine Longblock Engines are temporarily fit with electrical systems, fresh water cooling systems, and premium fuel to perform a series of “Hot-Test” validations for quality control purposes. Thereafter, the engine oil drains back into the pan and loses its lubrication value from the valve-train and cylinder walls. Mercruiser REQUIRES the installer to perform an […]

Our Remanufactured Marine Longblock Engines have a Max bore size of .060″ over. The normal manufacturing process includes cutting .040″ then checking cylinder wall finish, and if needed cutting another .020″ maximum. NOTE – All of the cylinder bores will be the same diameter. People generally have a misconception of  cylinder bore that more is bad, […]

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