Large Multi-Valve Tool
These tools are purpose to save time necessary when replacing valves in modern 16 â€“ to 20 â€“ valve heads.
Large tool works on valves of 4-valve-per-cylinder heads (5.5 mm valve stem diameter or larger with under 40 lbs. seat pressure)
Small tool works on valves of 4-and 5-valve-per-cylinder heads (5mm valve stem diameter or smaller)