( It will work on any LS engine for Firebird, for Silverado, for Camaro, for GTO, for Corvette, for CTSV, for Sierra, for Tahoe, for Suburban, for Pontiac G8 GT and more. )

Features:

1. This Valve spring compressor tool works with any LS based engine, and any valve springs (single or dual).
2. Our valve spring compressor tools has good adaptability and durability, does not require you to frequently disassemble the engine to replace.
3. The valve spring tool is precision CNC processed, which is an excellent substitute for high-priced tools and can complete the same work.
4. Pneumatic operated valve holder designed for 14mm and 18mm diameter spark plug holes, commonly found on all LS engine platforms.     The other end is a 1/4" female NPT which can easily be connected to air hose quick connect fittings. 14mm is the standard spark plug size for most all domestic and foreign vehicles.
5. The valve spring compressor tool is used when installing valve springs while the cylinder head is installed on the engine. Just be sure to maintain the air pressure in the cylinder while the spring is being replaced.
6. This tool allows the combustion chamber/cylinder to be filled with compressed air, which holds the valve closed while the valve spring is exchanged.
7. When you installing screws, using lubricating oil can have a better effect, be sure to use eyeshield and gloves!

Kit Contents: 

Stud
Nut 
Valve Spring Compressor

Important Notice:

* Accessories: You will get exactly as shown in the picture.
* Hi-performance aftermarket parts; no instruction included; professional installation is suggested.
* For any needs please contact us via eBay message.