New Mercruiser 350 Engine ID , need help

Tobson44

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Hi
Thanxs for a fantastic site, writing from Sweden.

Just bought a replacement engine to my Maxum 2400 SCR 2002, bought the engine on an auction no papers to it. Brand New, never used shall be Mercruiser Marine

Its a marine replacement, brass plugs in the block etc. My biggest fear is that it is a counter clockwise engine and that means disassemble and replace what ? Camshaft, Pistons ?

And I would like to know more in general about it

What I do know:

Engine Block number at the rear is: 10243880 (So should be VORTEC, Roller, 2 or 4 bolt main bearing) Anything more you need to know ?
Casting Date: K12-5, So should be 12´th Nov 2005 or 2015 ?
Engine number front right side: 1M1202 first row, 3G01 second row

Br Tobias, from the winterish Gothenburg
 

63Half-ton461

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Yup 880 is a Vortec block, heads will be a 062 or 906 castings. i would see which way the starter motor spins with 12v applied and take it from there.
 

cfpcorp

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to the best of my knowledge, MC did nor build any reverse rotation 350's with roller cams. if you want to be sure, take the front cover off: it its got a chain, it's standard rotation (CCW); if it's got gears, its reverse (CW).
rotation is always as viewed from the back of the engine.
 

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