Radium Fuel Rails - GM LS7 EngineThese fuel rails are compatible with the following vehicles that use the General Motors LS7 V8 engines: 2006 2013 Chevrolet Corvette Z06 2014 2015 Chevrolet Camaro Z28 2013 Chevrolet Corvette 427 Manufactured with a large 0. 69" internal bore, the fuel rails can support all necessary engine power requirements. They are CNC machined from extruded 6063 aluminum, black anodized, and laser etched for a high quality surface finish. All end ports are