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Differences between 470 and 485

B

Bill Lorber

Guest
"Just bought an '81 searay

"Just bought an '81 searay with twin 485's. one is bad for sure and the other is questionable. my question is , there are plenty of 470's for sale but no 485's. what is the main difference between these motors and would it make any difference to install a 470? also, are most of the parts interchangable?"
 
Bill: If I remember correctly

Bill: If I remember correctly the difference is the 470 has a 2 BBL carb and the 485 has a 4 BBL to make 15 add'l HP.
 
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