Quality is of the highest importance to Fiennes Parts, therefore we only outsource manufacturing to the most renowned engineers. Our cylinder heads and cylinder blocks are no different. We're utilising many years of testing and development to enable us to provide you with the best possible products.
We hold stock of most models, and will happily discuss your requirements with you in detail.
Cylinder heads
Our new cylinder heads are dimensionally the same as the original cylinder head manufactured by Rolls-Royce. However, where Rolls-Royce manufactured cylinder heads for the small horsepower engines in cast iron, ours are manufactured in a high tensile grade of aluminium. This is not without precedent; cylinder heads for the late Phantom 1 and all Phantom 2s were cast in aluminium. The aluminium gives improved cooling and a much-reduced casting failure rate.
Our cylinder heads are fitted with valve guides and valve seats suitable for lead free petrol. They are also fitted with core plugs and push-rod tubes through the water jacket, and the cylinder heads are pressure tested. They are supplied with all new studs in place, and are finish painted in gloss black.
Cylinder blocks
Our blocks are made from cast iron, pressure tested, painted in gloss black and are fitted with 26 copper tubes. Where applicable they are also supplied with a set of cylinder block studs, which are loose and need to be fitted by the customer.
MOST IMPORTANT
It is essential when using a car equipped with an aluminium cylinder head that the coolant is made up of a 50% mixture of water and anti-freeze, if a water-based anti-freeze is used. The anti-freeze must be renewed on an annual basis to ensure that its corrosion inhibition properties are maintained at full strength. Failure to do this may lead to premature failure of the cylinder head for which we will not be liable.
A selection of the cylinder heads and blocks we supply
Silver Ghost block
Bentley 4.25L cylinder head
20/25 cylinder block
