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Author Topic: Chocolate Valve Guides? Strange CB500 Head?  (Read 6310 times)

Offline AshimotoK0

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Re: Chocolate Valve Guides? Strange CB500 Head?
« Reply #15 on: January 17, 2018, 06:57:48 PM »
Checked my 3/71 500K0  head and it's the same as the strange one you bought ...so mystery solved
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Offline Trigger

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Re: Chocolate Valve Guides? Strange CB500 Head?
« Reply #16 on: January 17, 2018, 07:04:59 PM »
Most early 500 heads had them oil ways, you can just see the holes under the cam


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Offline Seabeowner

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Re: Chocolate Valve Guides? Strange CB500 Head?
« Reply #17 on: January 18, 2018, 12:32:45 PM »
Well you live and learn. Thanks for clearing that up. I wonder how long they kept to it. There was a 12200-323-000 followed by a -010 revision. Also notice the centre bearing surfaces have no groove as it doesn't need to feed the oil bath.
I didn't buy the one pictured. It is still available in the US at <£10! +++
https://www.ebay.co.uk/itm/A-71-73-VINTAGE-HONDA-CB500-FOUR-CB-500-OEM-ENGINE-TOP-END-CYLINDER-HEAD/152867426340?epid=1923387534&hash=item23979bd024:g:k48AAOSwp7FaXPqr
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Phil
1971  CB500K0  Candy Jade Green or Candy Gold
1973  CB500K1  Candy Ruby Red
1975  CB550F1   Shiny Orange

Offline paulbaker1954

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Re: Chocolate Valve Guides? Strange CB500 Head?
« Reply #18 on: January 19, 2018, 11:39:57 PM »
Here’s my 71 K0 500 head which does not have this feature
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Offline Trigger

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Re: Chocolate Valve Guides? Strange CB500 Head?
« Reply #19 on: January 20, 2018, 08:04:26 AM »
Quote from: paulbaker1954 on January 19, 2018, 11:39:57 PM
Here’s my 71 K0 500 head which does not have this feature


How would you know that your head is original to the engine  ;) The early heads were upgraded for obvious reasons  :o
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