Ford FE 390 427 428 Internal Balanced Fluid Damper Harmonic Balancer SFI 18.1 These caps are engineered for

These caps are engineered for high performance

Speedmaster braided hoses feature a partial stainless steel reinforcement within the inner braid

You can get up to 50 percent more starting power when you pick one of these Speedmaster high-torque mini starters

not from sand molds

ensuring a perfect fit and maximum efficiency

Ford FE 390 427 428 Internal Balanced Fluid Damper Harmonic Balancer SFI 18.1 These caps are engineered forUsing 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.