Adjustable on-head valve spring pressure tester for various shaft style and stud mount roller rocker systems. Great for wedge/inline motors, canted/splayed motors, and Big Chief/Spread port styles. The PC-100 features four course adjustment hole locations and includes four fine adjustment shims which enable calibration to within .050" of rocker arm pivot length. Just unscrew the handle and move the load cell module in or out for proper length across the rocker.
Part# PC-100