Mercruiser 1985 5.0 compared to 2005 5.0

crazedflyer

Recruit
Joined
May 3, 2013
Messages
4
What is the difference that gains 20hp between '85 and '05? I bought a boat that has a cracked block and am going to pull the engine out of my '85 to put in the '05. My '85 is a sea arrow and the '05 a bayliner. Has anyone done this with such an age gap and cab anyone think of anything i might run into along the way? Any help would be greatly appreciated.
Thanks in advance
 
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