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The PowerHouse L86 / LT1 6
may be required in vehicles with oversized
The Dirty EGR Solution Package is the most comprehensive upgrade for the 2017–2019 L5P Duramax
and larger valve sizes exceed a single spring’s capabilities
2006-2010 Duramax Fluidampr Harmonic Damper (830111) 1988 The PowerHouse L86 / LT1Using only three parts (a laser welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two), SFI approved Fluidampr harmonic 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.
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