The Redditch Bullets had an internal crankcase drilling and a valve which allowed oil to bypass the cylinder head when the oil pressure reached approx 30psi. On the Indian models this pressure relief valve and drilling were never fitted with the exception of some of the very early Bullets in the 1960’s. This can put a lot of extra strain on the oil pump components especially when the engine is cold.

This kit re-introduces a pressure relief valve into the system using the same type of valve that was used on the Redditch models and returning the unwanted oil back to the oil tank via the timing cover. It has taken 2 years to develop and thoroughly test. It works well with the standard or high capacity pumps allowing you to maximise the oil flow yet keeping the pressure reasonable. The kit comprises of new CNC machined polished tappet cover with rubber gasket, return pipe, relief valve and adaptor and all the necessary gaskets and washers.