evinrude piston rings

BLW1963

Recruit
Joined
Jan 7, 2019
Messages
1
I have some piston rings I want to install in a 1963 evinrude, standard bore 2.374 ? part # is omc 0378425 is there anybody that knows if these rings are std.. Rings
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,195
378425 Are 040" oversize for a 10hp. Standard rings are 378416
 
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