Hawks Motorsports offers our clients this 843 1997-2004 Corvette LS1/LS6 Harmonic Damper, 8-Rib Drive, 10% Overdrive, Innovators West. This harmonic damper is designed for C5 Corvette LS1 and LS6 applications and features an 8-rib belt drive with a 10% overdrive pulley. It is built for the Corvette accessory-drive configuration and is intended for applications where additional belt engagement and increased accessory-drive speed are needed.

For a C5 that's getting serious about boost, the crank pulley is where the belt drive starts earning its keep. Going from six ribs to eight gives the belt more bite, while the 10% overdrive lets a blower get moving without having to go crazy-small on the blower pulley. It's a straightforward way to beef up the belt drive while keeping the LS accessory system clean and compact.

The 843 uses an 8.125-inch diameter pulley and is built around the Corvette LS1/LS6 accessory-drive offset. It features a single 3/16-inch keyway, with dual-keyway and Super Duty Blower Hub options available for more demanding combinations. Verify the crankshaft and accessory-drive configuration before ordering.

KEY FEATURES:

• Part number: 843
• Innovators West harmonic damper
• Designed for 1997-2004 Chevrolet Corvette LS1/LS6
• 8-rib belt drive
• 10% overdrive
• 8.125-inch diameter
• SFI 18.1-rated harmonic damper
• Single 3/16-inch keyway
• Corvette LS accessory-drive configuration
• Crank bolt included
• Optional dual-keyway configuration available
• Optional Super Duty Blower Hub available
• Designed for performance and forced-induction LS applications

FITMENT APPLICATIONS:

Chevrolet Corvette C5

• 1997 Chevrolet Corvette LS1
• 1998 Chevrolet Corvette LS1
• 1999 Chevrolet Corvette LS1
• 2000 Chevrolet Corvette LS1
• 2001 Chevrolet Corvette LS1
• 2002 Chevrolet Corvette LS1
• 2003 Chevrolet Corvette LS6
• 2004 Chevrolet Corvette LS6

Important: Verify the engine and accessory-drive configuration before ordering. This damper is designed around the Corvette LS1/LS6 drive arrangement. Engine swaps, aftermarket accessory drives, or modified crankshafts may require different components.

INSTALLATION NOTES:

• This listing is for one Innovators West 843 harmonic damper.
• Crank bolt is included.
• Designed for an 8-rib belt drive.
• The 10% overdrive pulley increases crank-driven accessory and supercharger speed.
• Verify pulley alignment and belt routing before operation.
• Verify the correct serpentine belt length after installation.
• Standard damper uses a single 3/16-inch keyway.
• A dual-keyway configuration requires the crankshaft to be machined for the second keyway.
• Do not install a dual-keyed damper without the corresponding crankshaft machining.
• Optional Super Duty Blower Hub is available for high-output supercharged applications.
• Inspect the crankshaft snout and keyway before installation.
• Use the proper harmonic damper installation tool.
• Follow manufacturer installation and torque specifications.
• Verify fitment before ordering, particularly on modified or swapped applications.