Late Model GM LSX/LTX & HEMI Performance
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SLP Harmonic Balancer/Underdrive Pulley - Southwest Speed LLC

SLP Harmonic Balancer/Underdrive Pulley

$ 239.95

SLP's 25% Harmonic Balancer / Underdrive Pulley corporates a number of high quality features you won't find on any other aftermarket unit and makes up to 4.9 additional rear wheel horsepower and 6.1 ft-lbs of rear wheel torque. Among these features are a pair of extra tall belt retention walls that eliminate the belt slippage issues common with other harmonic balancers. Other unique design strengths include a 100% steel construction (unlike other brands which use aluminum), integral timing marks and built in puller mounting threads. Includes new bolt and detailed installation instructions.

NOTE: Requires Two New Belts Not Included

2010-14 Camaro
Main Belt: Gates K060827 or 82.7" Equivalent
Accessory Belt: Gates K040353 or 35.3" Equivalent

4.8/5.3/6.0 Truck/SUV and TrailBlazer SS
Main Belt: Dayco 5060895 or 89.5" Equivalent (When the vehicle is equipped with an Overdrive Alternator, use Dayco 5060882 or 88.2" Equivalent).
Accessory Belt: Dayco 5040345 or 34.5" Equivalent.

  • Up to 4.9 Rear Wheel Horsepower Increase
  • Up to 6.1 ft-lbs. Rear Wheel Torque Increase
  • Extra-tall belt-retention "walls"-no more thrown belts!
  • 100% steel construction
  • Integral timing marks and puller-mounting threads
  • Does not cause false knock retard or erratic power-curve dips
  • Includes a new balancer bolt

  • 1999-2013 Escalade 6.2L
  • 2010-2013 Camaro L99/LS3
  • 1999-2007 Silverado/Sierra/Classic/SUV 4.8/5.3/6.0
  • 2007-2013 Silverado/Sierra/Tahoe/Escalade
  • 2006-2009 Trailblazer SS

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