Steel Fan 17in 6 Blade

The ALLSTAR PERFORMANCE Steel Fan 17in 6 Blade is a mechanical engine cooling solution designed for hot rod builders, street performance enthusiasts, and anyone running a carburetor-fed engine that demands reliable, consistent airflow through the radiator. Unlike electric fans that depend on wiring and relay systems, this steel fan blade assembly mounts directly to your water pump pulley, delivering passive cooling engagement proportional to engine RPM—exactly when you need it most during idle and low-speed operation.

The 17-inch steel fan features six blades manufactured from durable steel stock with black paint finish, coupled to a universal bolt pattern and 5/8-inch pilot hub that accommodates most serpentine belt configurations. The six-blade design strikes a balance between static pressure recovery and parasitic horsepower loss—traditional mechanical fans draw air through the radiator core more aggressively than electric units but generate higher drag at cruise. This fan's compact 18 x 20-inch envelope and modest 5.2-pound weight make it ideal for space-constrained engine bays, particularly in vintage muscle cars, customs, and bracket racing builds where simplicity and reliability trump auxiliary electrical systems.

Mechanics and engine builders favor mechanical fans for naturally aspirated small-block and big-block installations because they eliminate potential cooling system failures tied to electric fan failures or corroded relay contacts. The universal bolt pattern ensures broad compatibility across Chevy, Ford, Mopar, and modern swap platforms, though verification of hub pilot diameter and belt routing is essential before installation. This fan works best paired with a high-capacity aluminum radiator and proper shroud ducting to maximize cooling efficiency and minimize fan noise in daily-driven and competition vehicles.