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View Full Version : merc v6 drop in vs 488 merc 4 cyl


richardk5457
06-14-2010, 09:34 PM
fellas, today found a v 6 merc 1985 185hp 2bbl in good shape. can this be hooked up to my existing alpha 1 outdrive do not know gear ratios, is there a special adapter for the exhausts from one to twin exhausts that i can purchase? the v6 comes with a alpha 185 outdrive but do not know its condition however my old alpha is fine. enclosed are serial #s of new v6 and would you confirm the yrs, i come up with 1985-87 vintage. #s a-606535 and a615895 outdrive on outside port side center had a640426 and back plate said alpha one 185. appreciate your comments. bythe way my 4 cylinder 488 develops 220 hp where the v6 is 185 hp. do you feel there will be any noticable speed or performance differences. thanks again richard

Bonita Dan
06-15-2010, 04:31 PM
Your gonna have to install a new Y-pipe for the V6. Speed and performance,well ya just cut your HP by 35 so your gonna loose a little speed but may gain some fuel mileage. Go to perfprotech.com and type in your serial #'s. They will give ya gear ratios and such about your old and new set-ups. Your gear ratio in the 488 drive should be fine. Good luck with the repower.