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Swapping a 1970 mercruiser with a cracked block

B

Brian Jennings

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my father and i just bought a

my father and i just bought a 20' 1970 penn yan boat with a mercruiser 165hp in it. there is water in the oil and the block is cracked. i was wondering if there is any other engine that would fit the bell housing as an upgrade or if there is anyplace to buy a used or rebuilt block without spending too much $$$?

thanks for any information
 
"inlline4, inline, V6,V8 the V

"inlline4, inline, V6,V8 the V`s require new Y pipe exaust.Before I do anything else I would check the transom first for any rot."
 
the transom seems in good cond

the transom seems in good condition. it has an inline 6 in it now and i don't really know what would fit in it good
 
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