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Speedmaster LS dual 4-barrel
the stock accessories may not run at the same speed as originally designed
Speedmaster machined aluminum water pump pulley nose cones are offered straight off of the mill without polishing for a gorgeous matte finish
street rod and marine applications
Speedmaster valve locks are wider-angled 10 degree locks
Mini Cooper R55 R56 R58 R59 R60 Fluid Damper Harmonic Balancer SFI 18.1 Speedmaster LS dual 4-barrelUsing 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.
