engine swap question

[boatmanami]

I have a 1987 Searay Seville with a 4.3 engine that is junk. I found a 1988 Seville with a 4.3 that runs good. how can i be sure it will fit in my 1987? what things should i look at?

 

[dubs283]

Look at the engines

Do they have the same accessories mounted in the same arrangement?

Pictures is good to look at

 

[Scott Danforth]

the motors are the same vintage. all 4.3 motors have the same external dimensions and mounting points.