A handy kit for engine and transmission rebuilders. No more hunting for rags to close the intake or plugs for speedo sensor, tappet bores, oil passages, spigot holes and so on, as this plug kit contains all plugs for all holes in both the engine and transmission when going through the steps of the rebuilding process. A professional solution for eliminating any destructive things from your assembly such as dirt, dust or miscellaneous hardware. Kit includes enough plugs for one Twin Cam A or B engine and transmission.