This is a 2018 motor that was installed in a 2018 HEYDAY boat and never registered. The last warranty repairs were done in 2021. The long block wasn't replaced under warranty.
MerCruiser tells us that there are NO GM parts in this engine. When I said surely Merc must have used "off the shelf" parts like lifters, pushrods and rockers? I was told "nope we designed everything in house and contracted for their manufacture or did it ourselves". I personally find this hard to believe, but haven't found anybody that has sourced internal engine parts for one of these engines.
I'm told that the companies that supply Merc with these parts are not allowed to sell them to anyone other then Merc.
As near as I can tell, your options are. New from MerCruiser, used or custom made.
MerCruiser tells us that there are NO GM parts in this engine. When I said surely Merc must have used "off the shelf" parts like lifters, pushrods and rockers? I was told "nope we designed everything in house and contracted for their manufacture or did it ourselves". I personally find this hard to believe, but haven't found anybody that has sourced internal engine parts for one of these engines.
I'm told that the companies that supply Merc with these parts are not allowed to sell them to anyone other then Merc.
As near as I can tell, your options are. New from MerCruiser, used or custom made.