Review on LS Engine Valve Spring Compressor Tool Compatible with Chevy LSX Camaro, Corvette, Trans Am, GTO, G8, CTSV, GM Trucks - Fits 4.8L, 5.3L, 5.7L, 6.0L, 6.2L LS1, LS2, LS3, LS6 by John Barnett

I love this tool. I've used cheap generic ones and they keep popping up, can be used forever etc. I bought this for a couple of LS heads I'm working on and it's amazing! I had all 16 valves, springs, retainers and seats in 20 minutes! I didn't give 5 stars for several reasons: 1. The bolt used for compression doesn't last long, get spares.2. The included washers are not hardened and will not last long, please purchase replacement parts.3. There were no assembly instructions; But it's very easy to understand.