13 Fin K321S?

[Bill D 1,927]

Hi,

 

I have a K321S, Spec # 60424, S/N 14169017.  I was counting the cooling fins on the rear of the engine and noticed that it has 13 fins.  I read somewhere that 13 fin blocks were more sought after thatn 12 fin blocks.  If so, why?  Also is it possible to have a 13 fin K321, or did someone possibly change the cover in the past?  Also is it possble to tell is this engine has balance gears from the numbers?  I have read that some engines did not have them.  Thanks 

[richmondred01 2,238]

13 fin provided a bit better cooling.

as for the balance gears you can take a peak by removing your oil filler tube and with a optical light look in and see. Can’t tell you with just a spec number. Some do and some dont.