I saw an ad for a used Mercuiser 377 Mag. It appears to be a Vortec block with a 383 stroker crank based on what I have read. It has the rare Vortec marine fuel injection intake.
Totally clueless about boat motors. Can I just yank the exhaust manifolds, engine accessories, etc. and drop it in my 96 Tahoe? Will the crank accept a flex plate?
Be very very spooked about any used marine engine.
Pulling a boat engine is not easy.
The normal cherry picker doesnt have the reach to pluck it.
It aint easy so why did they bother doing it?
Any marine engine especially in a high speed hull is subject to much more wear and that wear happens much more rapidly than in a car.
We call it crank shock or crank bounce.
In a drag car once you get traction and put torque through the power train that load ramps up in a pretty steady way and obvserable way.
In a boat Crank load and rpm are subject to not only the engine slamming up and down.
But the constant loading and un loading of the prop as it comes out of the water.
The other problem with used boat engines is that I without a doubt can guarentee you that engine has hit 6 grand or maybe more while some drunk dope tried to drive up on a bone dry bunk trailer.
And the stroker makes it much worse.
Stroker valve trains will come apart at high sustained revs.
Especially if there is no load on them.
Twin engine 850 horse ******* kabloo crying because the props were halfway out of the water
They blow up when chuckleheads try to power the boat onto the trailer.
Never ever ever frigging ever buy a used boat engine.
They probably yarded that **** motor out of a crap boat and found out that it will 600 or 800 bucks to landfill the boat and are trying to cover the cost by selling you a "marine" engine.
The only "marine" part of that engine is the exhaust manifolds and the intake and the starter and water pump and alternator.
The rest of that engine is a bone stock weak cam low compression engine designed to run on 87 octane because the only thing you can buy at a marina is 87 octane.