Competition Cams 7815-16 High Energy Pushrods for Big Block Chevy with Retro-Fit Hydraulic Roller Cam, 3/8" Diameter, 7.725" Intake Length, 8.684" Exhaust Length 3/8 inch Diameter, 7.725 inch intake length (qt. 8), 8.684 inch exhaust length (qt.8) for Big Block Chevy with retro-fit hydraulic roller cam Best choice when building street rods, RVs or daily drivers Meet or exceed all OE pushrod specifications Mate perfectly with High Energyand Magnum Rockers Durable one-piece construction