Hawks Motorsports offers our clients this 903-KIT LS1/LS2/LS6 Corvette 10-Rib Drive Conversion Kit with 10% Overdrive Harmonic Damper, Innovators West. This kit converts the compatible LS1, LS2, and LS6 Corvette accessory drive to a 10-rib configuration and includes a 10% overdrive harmonic damper for high-performance and forced-induction applications.

If you're building an LS and plan on leaning on the blower, keeping the belt drive hooked up is just as important as making the power in the first place. The 10-rib conversion gives the belt more real estate to bite into, while the 10% overdrive damper spins the crank-driven accessories and supercharger faster. It's the kind of upgrade that makes sense when you're past stock pulley duty and want a belt drive that can handle some serious abuse.

The 903-KIT is built around Innovators West's performance damper and is intended for compatible LS1, LS2, and LS6 Corvette applications. The 10% overdrive increases crankshaft pulley speed, which can be used to increase supercharger speed without relying solely on a smaller blower pulley.

This is a complete conversion kit, so verify the exact engine, Corvette application, existing accessory-drive configuration, and all included components before ordering.

KEY FEATURES:

• Part number: 903-KIT
• LS1, LS2, and LS6 Corvette application
• 10-rib accessory-drive conversion
• 10% overdrive harmonic damper
• Designed for high-performance LS applications
• Useful for supercharged and forced-induction combinations
• Increased belt contact area compared with the original 6-rib configuration
• Innovators West performance damper
• Conversion kit configuration
• Verify exact kit contents before ordering

FITMENT APPLICATIONS:

Chevrolet Corvette LS1

• Compatible LS1 Corvette applications

Chevrolet Corvette LS2

• Compatible LS2 Corvette applications

Chevrolet Corvette LS6

• Compatible LS6 Corvette applications

Important: This is an engine/accessory-drive application rather than a universal Corvette bolt-on. Verify the engine, accessory drive, belt routing, and existing components before ordering. LS1, LS2 and LS6 engines were used across multiple Corvette model years and configurations.

INSTALLATION NOTES:

• This listing is for one 903-KIT conversion kit.
• Verify the vehicle and engine application before ordering.
• Verify the existing accessory-drive configuration.
• The kit converts the applicable drive to a 10-rib belt system.
• Verify belt length and routing after the conversion.
• The 10% overdrive damper increases crankshaft-driven accessory and supercharger speed.
• A change in pulley ratio may require corresponding calibration, fuel-system, intercooling, and belt-drive considerations on forced-induction combinations.
• Inspect the crankshaft snout and keyway before installing the damper.
• Verify pulley alignment across the entire accessory drive.
• Follow Innovators West installation instructions and torque specifications.
• Do not modify or permanently install components until fitment has been confirmed.
• Verify the exact contents of the kit before installation.