Inlet valve guide, P2 series N2 to 50 in O2

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Sections requiring GAD150

GAD150 may be utilised in the following sections:

If you know which series of car you are interested in please select it from the following drop-down list. The list of Sections will then be rebuilt to show only those that require GAD150 for the chassis series that you have selected.

Alternatively you can browse the main catalogue starting from GAD150 in the "Cylinder head" listing.


Inlet valve guide, P2

The original Rolls-Royce practice was to manufacture Phantom 2 inlet and exhaust valves with the same stem diameter, and build the different valve stem clearances in to the finished diameter of the valve guides. This requires different size reamers to finish the valve guides to final size, and is contrary to most modern practice. For Phantom 2 our valves are made with different diameter stems for inlet and exhaust, and the valve guides are all reamed to the same diameter.