JEGS Premium Stud Mount Valve Spring Compressor Tool
Changing valve springs at the track or with the cylinder head on the bench just got easier. Install on 3/8" or 7/16" studs (with spring diameters ranging from 1" to 2") to compress high-load race valve springs. 12" handle and rubber non-slip grip. For use with heads still on the engine, we suggest Air Hold Adapter #555-80522.