• Valve Spring Pressure Tester
• The original tool for checking valve seat pressure on an assembled engine!
• Built-in 300-lb reading scale
• Fits roller rockers on Small Block, Big Block, and 90° V6 Chevy; Ford 221-302, 351-400 SVO and Ford Windsor engines, and most other wedge-type engines
• Use with Moroso Stud Mount Valve Spring Compressors No. 62370 for the most accurate method of maintaining the valvetrain on a fully assembled engine