Adjustable on head valve spring pressure tester for various shaft style and stud mount roller rocker systems. It comes equipped with a 0-160 lb liquid filled gauge--especially for crate applications. (Picture shows 600 lb gauge version).
The PC-100-160 features four course adjustment hole locations and includes fine adjustment shims which enable calibration to within .050" of rocker arm pivot length. Includes set-up and adjustment guide.