KHK Cylinder Date Code

[JerrryR]

Hi All, just curious about a KHK cylinder date code I just picked up. As seen in the picture "D 20-0". Is this just a replacement K cylinder Harley made for the dealers in April of 1960? What does the "S" stamped by the date indicate? Thanks

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[Rubone]

That is the most likely scenario Jerry, and the "S" is likely just an inspectors stamp.

[starcain]

Jerry, Sweet looking cylinders. Can't offer any comment on the date code but I would be very interested in seeing a picture of the polished intake and exhaust ports.

[JerrryR]

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[starcain]

Thanks Jerry