200X questions

Clarkb

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Joined
Apr 12, 2013
Messages
32
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Location
Sherwood, Arkansas
Guys I've got some questions about a Merc 200X (I think it's early to mid 90's)
I don't know anything about them.
It's a down draft intake front horn, alternator(Motorola Electronics).

-Are these 2.5 blocks?
-cylinder porting the same?
-Will a 200 efi electronics and fuel injection work on this block?
-Are they O-ring heads
Anything you can tell me about them would be greatly appreciated.
 
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