Ford 429 460 SFI 18.1 Harmonic Balancer Fluid Damper Internal [Chrome] This particular unit retains a

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

These Speedmaster aluminum water pump pulleys are made from a 356 aluminum alloy that is heat-treated to T-6 aluminum specifications and come in machined or polished finishes to suit your application

They're precision-machined from T6-106 billet aluminum

Applications available in 8

Convert any one-piece GM TH400 case into a two-piece case with our Speedmaster TH400 case adapter

Ford 429 460 SFI 18.1 Harmonic Balancer Fluid Damper Internal [Chrome] This particular unit retains 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.