Modpack by CyberCrafter_
It causes a world corrupting bug when you place an engine next to a quarry which will not be fixed. You should either not use the troublesome mod or search for a bettter modpack. It was surprising to get this many downloads! Thanks to all who played it!
The mods in its newest release (Minecraft 1.7.10). Each check result is for the exact file this pack installs.