RaymondDurban wrote:bob in CT wrote:Depends upon how you read it. Looks to me like all Cubs below that number have the old head. All tractors above that number have the new one.
That page I linked was from 1970, five years before Eng SN 312390 was made.
You are missing the point Raymond. Eng-1 is stating sn 312390 as a break point for CUBS, not Lo-Boys! It does not state that the head is NOT used in Lo-boys below that number. I concluded from ENG-1 that all 154's used the newer head and that Cubs did not begin using the newer head until the "New" International Cub in 1975.