LSM On-Head Valve Spring Tester

Adjustable on head valve spring pressure tester for various shaft style and stud mount roller rocker systems.  (For Chevy, Ford, and many applications.) This LSM tool comes equipped with a 0-600 lb liquid filled gauge.  The PC-100 features four course adjustment hole locations and includes fine adjustment shims which enale calibration to within .050" of rocker arm pivot length.  Includes set-up and adjustment guide.