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model by casting

ballardnboyz

Well-known member
Is there a link to find out my engine model, hp and year by a mercury block casting number...its 858 8631 c4... I think 200hp black max...This is not the original motor on the boat. i just found out i have a 1980, 225 hp racing lower unit...on a 1983 200hp, or so thats what the ser. # says on the swivel plate. I think some one popped the original motor in 81 or 82 and just bought a power head ???...any help out there would be appreciated :brickwall:
 

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