head identificaton

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rodney.mccue
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head identificaton

Post by rodney.mccue »

Can anyone help me identify this head.
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Roger Gwynn
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Re: head identificaton

Post by Roger Gwynn »

It seems to be in the style of 1929-30 head as it has the bosses on the right for side plates but the odd way that the front right bolt is buried in the fins is most un-Ariel like. Are there any numbers on it and what would you estimate the bore to be?
Roger Gwynn, Membership Secretary, curator of the Machine Register and the works drawings. Director of Draganfly Motorcycles, Craven Equipment and Supreme Motorcycles mostly retired.
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rodney.mccue
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Re: head identificaton

Post by rodney.mccue »

inside combustion chamber 86mm
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mark.prizeman
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Re: head identificaton

Post by mark.prizeman »

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It looks very similar to a '35 head I have - which has the two top valve oil feeds that Ariel did for that year only - same bore of 86mm and 18mm plug
I would think 33-34 early VH?
Picture shows it next to a later open valve head
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'25 Sunbeam 5 sports, '37 VH, '50 Magnat Debon M4, '53 AJS 20
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