Chevy GM LS LS1 LS6 UnderDrive Fluid Damper Harmonic Balancer SFI 18.1 Speedmaster remote thermostat housings locate

Speedmaster remote thermostat housings locate the filler neck at the highest point of cars with low mount radiators to bleed air

These Speedmaster crankshafts are made from the same strong aircraft-quality forging as standard-weight cranks

Speedmaster machined aluminum water pump pulley nose cones are offered straight off of the mill without polishing for a gorgeous matte finish

from mild to wild

Chevy GM LS LS1 LS6 UnderDrive Fluid Damper Harmonic Balancer SFI 18.1 Speedmaster remote thermostat housings locateUsing 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.