2.7 Heads on 3.0 I know, dead horse
Ok, so I have browsed through the posts on here but most are pretty old...was wanting to get some fresh feedback on the idea of 1986 2.7 200XP Evinrude heads on a 1989 225 plain old Evinrude.. First of all, can I just take the heads off the 1986 2.7 and slap them on the 1989 225 with no mods or anything done to them? Then, if those fit what kind of performance expectations should I have? What changes? I have seen people say they get 120 PSI from about 90 on this swap... The 225 is in decent shape, probably going to need main and rod bearings but will last a few months til the end of this season.. I would love to get more top end... Its on a 1986 Baja 200 Sunsport.. I usually get 93 octane.. Boat only gets to about 53 MPH..was expecting more... 21 inch prop... Need to hook up new tach still, Not sure what RPMs are... Please, let me know all you can about this idea...put links to other threads, comment, or just tell me to forget it!! Thanks!