Radium Engineering fuel rails for GM LS7 engines with factory-size injectors. They fit 2006-2013 Corvette Z06, 2013 Corvette 427, and 2014-2015 Camaro Z28 LS7 applications.
 
The 0.69-inch internal bore gives fuel a larger passage through the rails. End and lower-center -8AN ORB ports provide plumbing and accessory connections, while polished stainless mounts retain the factory mounting hardware.
 
CNC-machined extruded 6063 aluminum, black anodized and laser etched. 0.69-inch bore; -8AN ORB ports with 3/4-16 female threads. Includes two rails, four stainless mounting feet, and stainless mounting hardware. Part 20-0361.