Cam Identification KZ900

Hi all wondering if anyone would be able to help. The below cams came out of the below Speedway bike of my late fathers. They have a .375 lift .
Can anyone recognise if they are a stock reground cam by the markings?
Thank you in advance for any assistance 

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 Welcome to KZRider .
The  KH on the cams make them a set of Kenny Harmon cams 
NICE BIKE
Dave

I’d agree with Street Fighter that they are Kenny Harmon cams. I hope that bike is still intact, what a piece of nostalgia and history

Thank you very much, yes that is the bike today I have just restored it and put it on display at a 100 year anniversary of speedway in Australia last Friday, after it sat for 40 years, I had to buy a new magneto but that is what the bike looked like back in 1979 when it was built.. Thanks again

Thank you very much yes that is how it looks after being restored over the last 8 weeks, it hadn’t been raced by Dad since 1987.

Great to hear. I found some information on KH cams, nothing on the K series. Found information on the L series and some of the CB750 G series. Maybe just a deeper dive and you will get lucky.

EDIT, just guessing but I don’t think they are a regrind. They don’t have any stock look to them.