- Solid steel non-flex construction prevents airflow loss at high rpm
- Generous 18-inch span ideal for large radiator and shroud setups
- Efficient 4-blade design minimizes fan drag and power loss
- Black powder-coated protection against corrosion and abrasion
- Slotted center pattern ensures straightforward bolt-on installation
The Cal Custom 18-inch solid steel 4-blade non-flex fan is engineered for high-output engine cooling. Unlike flex fans, its rigid steel blades retain their shape at high RPM, delivering continuous airflow through large-capacity radiator setups. Finished in a black powder coat for wear protection, it features a slotted bolt circle that fits standard V8 water pump flanges, offering a dependable cooling option for street cars and competition vehicles.