LS engine valve spring compression tool with test tube

Description:
This tool is used when installing valve springs while the cylinder head is installed on the engine. This tool allows the combustion chamber/cylinder to be filled with compressed air, which holds the valve closed while the valve spring is exchanged. Place the cylinder you are working on at the top dead center, thread the tool into the spark plug hole, and fill the cylinder with compressed air. Just be sure to maintain the air pressure within the cylinder while performing the spring change.
100% new precision CNC machining.
The pneumatic valve seat is designed for spark plug holes with diameters of 14mm and 18mm, which are common on all LS engine platforms.
The other end is 1/4 “female NPT, which can be easily connected to the air hose quick connect fitting.
Compressed air (working pressure 30psi P 300PSI).
Renovation:
This kit is for the cathedral port LS cylinder head. Similar: LS1, LS2, LS3, LQ4, LQ9 4.8L 5.3L, 5.7L, 6.0L 6.2L, and all other LS Cathedral port variants. Ls engine universal!!
(for example, it will be applicable to any LS engine of Firebird, Silverado, Camaro, GTO, trans am, Corvette, CTSV, Sierra, Tahoe, suburban, Pontiac G8 GT, etc.)
Package:
1X Valve Spring Compressor Kit
1X 10” Hybrid Hose
1X 1/4″ Quick Coupler male plug
1X M14 & M18 Fitting & O-rings