I got a few in the shop right now;
cases 10,***
lower end #20, ***
Whole engine #16,***
Whole engine #44,4**
Book lists cases same from 7,415 thru 44,8** I looked at e 16K and 20K motors but the $$K is different, probably like K1, I am thinking. Any thoughts on this?.. I suspect more than 1 engine line and when new cases came out some got stamped out of series.
Heads without front hole; by partsbook looks like these ended @ 26,***, is that what you guys have found?
Also seeing some difference between KO heads and K2, ie exhaust spigot length.
Also have a head73 and later marked 300 5 on rear top fin between 2&3 cylinder, is that FO or F1 ?
