I have to replace the starboard engine in my 1980 Commander (410). It has overheated and seized up. I'm looking at replacement long blocks to buy and swap out. Any experience out there with companies that supply these, bolt-up differences, "replacement" vs "remanufactured", specific characteristics like configuration of rear main, types of gaskets etc. Also - I'm looking at getting the new long block into the cabin through the door or window with a hoist. Anyone done this? Thanks in advance for your ideas!

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Glad for you. I ended up having the block and heads rebuilt. Major problem and loss of time on the river. Hope you checked the other hull inlets too. 


My port engine was overheating. Close cooling , problem solved.  The tru,hull raw water inlet was clogged about the size of a nail head. Was all the opening I had  hard plaque build up,once clean opening is  one inch overheating solved..

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