Topic: Newbee need help with Engine frame numbers

[tut]

Hi everyone,
Newbee from the UK, (even though i am 64), got rid of all my all british stuff as I cannot kick the things over and have been offered a K4 but there are 11000 numbers between the engine and frame numbers. I understand that they should be near but I think thats quite a lot.
All help appreciated
tut

[MD]

Welcome from the little pond called Lake Superior,

Frames and engine numbers never match.   Someone might know of a database that will tell when the engine was manufactured.

-MD

[denward17]

Model   Year   Production Dates   Number Sold               Engine#   Frame#
CB750 K3   1973    09/72 – 06/73      38,000                  2200001   2200001
CB750 K4   1974    06/73 – 05/74      60,000                  2300001   2300001
CB750 K5   1975    05/74 – 12/74      35,000                  2372115   2500001

Don't know if this helps you or not, found on http://www.sohc4.com/cb750/cb750k/#serial-numbers

[tool14]

welcome aboard

[CycleRanger]

Howdy! Welcome.

Yes, an 11K difference sounds like a bit much. It is possible it's not the original engine.

[newday777]

Hi everyone,
Newbee from the UK, (even though i am 64), got rid of all my all british stuff as I cannot kick the things over and have been offered a K4 but there are 11000 numbers between the engine and frame numbers. I understand that they should be near but I think thats quite a lot.
All help appreciated
tut

Welcome aboard.
Did you figure it out from the list above? If not, post pictures of the frame and engine vins.