Re: [HSS] Re early Essex Cly Head

Unknown

John Meadows wrote:

>

> Why did they change the cylinder head and the carburetor on the early

> Essex cars?

> John.

>

The main reason was because of lowering octane rating and volatility of

the fuel available. The compression ratio was lowered, and the

manifolding altered to give a hot air feed into the curburettor to aid

vapourisation of the mixture.

Geoff.