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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Requesting the casting and modification of a high power cylinder head for a six-cylinder engine.

Identifier  ExFiles\Box 133\2\  scan0145
Date  24th April 1935
  
X1003

To. RHG.
c. to Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}

Hs{Lord Ernest Hives - Chair}/Wd.{Mr Wood/Mr Whitehead}2/GB.24.4.35.

HIGH POWER HEAD.

Will you please arrange to get at least four sound castings in aluminium of the High Power head, as recently modified.

We are looking into the modifications necessary to make this head suitable for a six cylinder in-line engine and have attached herewith a rough sketch showing what is required in order to get the valve gear up between the exhaust ports.

Will you please work this drawing up and then arrange to have 2 or 3 heads cast and one machined for test.

------------------

Hs{Lord Ernest Hives - Chair}/Wd.{Mr Wood/Mr Whitehead}

Attach drg.
  
  


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