RTS Engine Mounts Aluminium, Motor Mount Plate, Bolt-In, LS Conversion, Adjustable, Black Powder coated, PairThese LS conversion plates will allow you to swap LS Engines in various chassis types using 3 bolt Engine Mounts. CNC milled from billet aluminium to provide the most accurate adapter plates available. Laser cut, water jetted, or plasma cut parts do not compare to the quality, precision and accuracy of a CNC milled product. Provides up to 3" of total adjustment range For GM LS engines Includes all hardware Polyurethane mounts not included