Hooker Headers 12618HKR Engine Mount Brackets. Engine Mount Brackets; GM LS Engines; 1968-69 F-Body/1968-74 X-Body; Incl. Mounting Brackets And Hardware. Designed For Bolt In Compatibility w/Trans Swap Components. In 1962 Gary Hooker designed a header for his 409 Chevrolet and discovered a demand for this header from other racers in the area. It wasn’t long […]