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			I see a few 190hp mercruiser 4cyls on ebay. Would it replace a 170hp/470? Is the difference the bore size,and would all other external parts work off a 170 on a 190,head, manifolds, dist? Just wondering. It looks like they have the same block.
		 
		
		
		
		
		
		
			
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	77 V20 cuddy with 170 I/O Mercruiser 72 16ft. Carolina w/a 25hp Evinrude  | 
		
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