Ford FE 390 427 428 Internal Balanced Fluid Damper Harmonic Balancer SFI 18.1 These air cleaners include a

These air cleaners include a washable

Design from the ground up based upon your favourite bowtie block with the ability to handle naturally aspirated

The Speedmaster design incorporates open-fin spacing that promotes airflow through the radiator to enhance the cooling and help eliminate clogging

consistent timing

heavy duty o-ring gasket design ensures long life and zero leaks

Ford FE 390 427 428 Internal Balanced Fluid Damper Harmonic Balancer SFI 18.1 These air cleaners include aUsing only three parts a laser welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two these SFI approved Fluid dampers can control all crankshaft vibration, not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.