70HP Conrod casting numbers

[rude70]

From a 70HP 1977 Evinrude, I have two conrods with casting number 335566 and one with casting number 320953. Does any one know how to find out which are the correct rods for this motor from the casting numbers? I have to replace on of the 335566 rods due to scuffing at the big end! Any help will be appreciated.

 

[tashasdaddy]

Re: 70HP Conrod casting numbers

you can check here, http://shop2.evinrude.com/ext/index.aspx?s1=bf6ad09c53cead335fcfd8a6471c0f7f

 

[Dhadley]

Re: 70HP Conrod casting numbers

Are they the same length?

 

[Faztbullet]

Re: 70HP Conrod casting numbers

My books show the 335566 fits 1974-85 70hp, 60hp up to 1988 and 1985 and up 25-35 hp engines. The 320953 fits 1980 and up 32ci engines and 1976 and up 49ci engines (60-75hp). If they look and measure the same it should work