Fluidampr 300004 Crankshaft Drill Pin Kit for Select 2004-2019 GM LS Engines

Fits select 2004-2019 Cadillac CTS-V, Chevrolet Camaro, Corvette, Silverado, Tahoe, GMC Sierra, Yukon, and Pontiac G8/GTO with LS-series engines.

High-performance GM LS engines often require pinning the harmonic balancer to the crankshaft, as the factory crank snout lacks a keyway. For supercharged or high-RPM applications, the Fluidampr 300004 Drill Pin Kit provides the hardware necessary to create a secure mechanical lock between the crankshaft and the damper, preventing the hub from spinning or slipping under load.

This kit is designed for accuracy and ease of use, featuring a dedicated drill fixture that bolts to the crankshaft to ensure perfectly aligned holes. The included hardened drill bit is sized specifically for the provided press-fit steel dowel pin, creating a robust connection that eliminates the risks associated with a friction-only fit.

• Prevents harmonic balancer slippage on non-keyed LS crankshafts
• Precision-machined drill fixture for repeatable, accurate alignment
• High-quality drill bit sized for exact press-fit tolerances
• Includes steel dowel pin and fixture holding bolt
• Manufacturer Part Number: 300004