Starting new discussion-

The earlier sandcast engines only have a two digit date (month & date) and E1 on the back of the top case but do not have the "T" as shown in this photo (see attached)
When did the T charactor start to appear? Was this added in later production moths? Where theses cases cast at a different factory or different time period? Was the "T" used for replacement cases sent to dealers or did it appear in normal production?
I know the two engines that I own do not have this additional charactor on the cases and mine were both Sandcast in June.
Can someone with an engine cast after June weigh in on the "T" casting charactor.....do other production sandcast engines have T  charactor on their cases?
Thanks for any help,
Duane

Hi- I am looking for a complete engine for a January 1970 built Diecast K0 with frame 204xx and I  WTB or trade for complete engine or good engine cases for a motor number between 19500-21000 (ideal) but would consider any engine numbers close to this range. Just purchased this bike and it is fitted with engine 374xx so I would like to get it back to the correct VIN range.
Thanks for any help.
DW