LS Valve Seal Tool
Instead of using an ill-fitting socket to install the valve seals on an LS engine, I took a piece of round stock from the turning center and used a lathe to drill a hole to match the seal size. The tool securely holds the valve seal, but without straight edges that can cause damage. Once the seal is in place, the tool easily slides off so the spring can be installed.

Nick Blanck
COMP Performance Group
Memphis, TN
November, 2017