Brodix 2061009 Race-Rite cylinder head for Big Block Chevy engines. Assembled with 2.250in intake and 1.880in exhaust valves, 294cc intake runner, and 119cc chamber. Features 1.550in springs for hydraulic roller cams with .600in max lift, angle plugs, and A-356 aluminum construction. Designed for 396-502 cubic inch engines, offering out-of-the-box horsepower for pro-street or drag racing. Sold as each.