Specifications
▪ Name : Spring Compressor Tool
▪ Material : Iron + Aluminum Alloy Tool
▪ Quality black iron screws and silver stainless steel nuts for durability.
▪ Package Includes : 1 Set of Valve Spring Tool

Applications
▪ Fits For cathedral port LS cylinder heads.
▪ For LS1, LS6, LS2, LS3, 5.3L, 5.7L, 4.8L, and all the other LS cathedral port variations.

Using
▪ This tool is used when installing valve springs while the cylinder head is installed on the engine.
▪ When using, you use a pneumatic air fitting to put compressed air into the cylinder to keep the valve closed.
▪ Placing the cylinder you are working on at top dead center, then thread the tool into the spark plug hole, and fill the cylinder with compressed air.
▪ Be sure to maintain the air pressure within the cylinder when changing Valve springs!

Note
▪ Always use Eye protection.
▪ Manual measurement, error 1-3mm, depending on the actual situation, please understand.
▪ You can get the most friendly customer service.