LSX Innovations AL12 LS1 Conversion Motor Mount Adapter Plates Billet Aluminum Our Chevy LS swap Plateswill allow you to swap a 1997-2013 LSX style engine into any Chevy application that originally used 3 bolt motor mounts. Including MOST 60s and 70s Chevrolet pickups and cars such as Chevy Camaro, Nova, Chevelle, and Impala among others. Our Chevrolet LS swap Plates are CNC milled from Billet 3/8 T-6061 aircraft grade aluminum 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. No grinding necessary for a flush fit