Ford 429 460 SFI 18.1 Harmonic Balancer Fluid Damper Internal [Chrome] Flat surfaces are finished with

Flat surfaces are finished with CNC machine center for accuracy and smoothness

High-volume water pumps have a ribbed aluminum housing and a heavy duty ball/roller bearing assembly

These Speedmaster camshaft bearings are made to meet or exceed OEM parts when it comes to strength and durability

This particular unit retains a stock-style pulley to allow this unit to be used in stock applications

but with several important modifications

Ford 429 460 SFI 18.1 Harmonic Balancer Fluid Damper Internal [Chrome] Flat surfaces are finished withUsing 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.