Mercruiser 5.7L Longblock – ’05-’15 MAG MPI OW310000 UP

This Mercruiser Longblock to suit late model MPI’s 2005 – 2015 is a BRAND NEW Quicksilver engine (not remanufactured)

This Longblock price includes dry joint manifolds and elbow sets, gaskets and bolt kit

The aftermarket fix. What it saves you could really cost you.

Yes, there are aftermarket operators out there. Might be a machine shop down the street or across town. What they have is a low price. What they don’t have is everything else. They don’t have Mercury engineers. They don’t have the depth of knowledge. They don’t have the rigorous testing. They’ll often fix a bad part, grinding it or welding it, rather than replacing it. And when they do replace, it won’t be with genuine MerCruiser OEM parts. They may not even be marine grade. Might be “will fits” or off-the-shelf automotive parts that aren’t made for the tougher conditions, heavier loads, and higher rpms a marine engine has to endure. Fact is, too many engines go to an aftermarket operator as a marine engine and come back as a car engine. And that can cost you big time in the long run.