Piper Adjustable Vernier Pulleys
Inlet and Exhaust pulleys for fine-tuning when using uprated camshafts. Fitment: All cars with Rover K-Series engine.
To obtain the maximum power advantages from your Piper camshafts, it is advisable to fit vernier pulleys.
These ultra light units have graded scales etched into the side which allow for accurate advance or retarding of the cam timing and in turn provide access to the best torque/power characteristics of the engine.
Only available in pairs.