Can I interchange Powerheads?

a05vma2

Cadet
Joined
Aug 11, 2003
Messages
21
Hi,<br /><br />can I interchange the power head from a 1979 Evinrude 20HP rope start to a 1977 15HP rope start?<br /><br />Thanks,
 

a05vma2

Cadet
Joined
Aug 11, 2003
Messages
21
Re: Can I interchange Powerheads?

Thank you for the reply. <br /><br />Could you explain why in this instance? I heard that most OMC motors were built using the exact same parts within certain years and horsepower.<br /><br />Thanks again.
 

ledgefinder

Ensign
Joined
May 2, 2002
Messages
916
Re: Can I interchange Powerheads?

The 9.9 & 15 are closely similar, but the 20 is a totally different motor.
 

G DANE

Commander
Joined
Nov 24, 2001
Messages
2,476
Re: Can I interchange Powerheads?

Veronica - did you never get the 20HP running ??
 
D

DJ

Guest
Re: Can I interchange Powerheads?

Veronica,<br /><br />Among certaim "families" of OMC engines, that was true.<br /><br />As an example: 9.9-15, 20-25-28-30-35, 40-48-50, etc.<br /><br />The physical size is one primary difference as you go up in hp..
 
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