Motor capatability

[boat nut]

Are the Evinrude 1969 55 HP AND THE 1971 60 HP engines basically the same.

 

[Droid]

Yes

 

[racerone]

The 60 HP had 3 intake ports verses 2 for the 55 HP version.---Pistons in the 60 HP had 3 ports.-----Other than that they are mechanically the same for the most part/.-----Why the question?