ID motor with no ser#

emiller1020

Cadet
Joined
Sep 6, 2009
Messages
9
Ok I bought this motor at a auction. Number plate is missing, I can tell you its a Merc/Mariner V-6 with no EFI. Guessing 150 to 200hp late 70's earily 80's anything I could check to narrow it down more?
Thanks
 
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