Airflow Research 2401 Blue Hornet 175cc Small Block Mopar Cylinder Head Assembled

The Airflow Research (AFR) 2401 Blue Hornet is a high-performance aluminum cylinder head engineered for Small Block Mopar LA V8 engines. Featuring an 18-degree valve angle and a 175cc intake runner with an as-cast surface finish, this head delivers impressive airflow — flowing 259 CFM on the intake side and 201 CFM on the exhaust side at 0.600 inches of valve lift. The enhanced water jacket design ensures superior cooling in critical areas, making it a reliable choice for performance street and strip builds.

Key Features:

• Intake Runner Volume: 175cc (rectangular port)
• Exhaust Runner Volume: 80cc (square port)
• Combustion Chamber: 62cc heart-style, as-cast finish
• Valve Angle: 18-degree
• Intake Valve Diameter: 2.020 in.
• Exhaust Valve Diameter: 1.600 in.
• Maximum Valve Lift Supported: 0.600 in.
• Valve Springs: 1.290 in. dual valve spring for hydraulic roller cams up to 0.600 in. lift
• Valve Hardware: 7° valve locks, retainers, and Viton valve seals included
• Spark Plug Style: Angled
• Construction: Cast aluminum
• Camshaft Compatibility: Hydraulic roller

The AFR 2401 is sold individually — two are required per engine. It is available fully assembled with the same premium components found across AFR's top-tier lineup, or as a bare casting for builders who prefer to specify their own valve train components. This is an excellent upgrade over factory iron heads for anyone seeking more airflow, reduced weight, and improved performance from their classic Mopar LA powerplant.