replacing 4 cylinder io with ?

[richardk5457]

gentlemen, my 488 4 cylinder has had it. thinking of replacing with straight 6 about 185 hp. would appreciate your comments. 1984 merc cruiser out drive currently ok. looking for best and easy swap out. thank you1 richard

[spareparts]

V6 or V8 are going to be the easiest swap. You will need a new y-pipe for the exhaust and all the compenets to go with the engine. V6 uses the same ratio as your 488