Ford 429 460 SFI 18.1 Harmonic Balancer Fluid Damper Internal [Chrome] These Speedmaster camshaft bearings are

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

but with several important modifications

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

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

Speedmaster TDS stepped up and created a full line of super-strong forged and billet yokes

Ford 429 460 SFI 18.1 Harmonic Balancer Fluid Damper Internal [Chrome] These Speedmaster camshaft bearings areUsing 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.