What is crank pinning and why is it important for LS engines?

Crank pinning involves drilling and installing a pin through the crankshaft snout and into the harmonic balancer. This prevents the balancer from spinning on the snout, which can happen under high stress from forced induction, aggressive driving, or manual transmission swaps, potentially leading to engine damage.

Does this kit include the crank pin itself?

No, this kit includes the precision drill guide, drill bit, and tap needed to prepare the crankshaft snout. The actual crank pin hardware is sold separately and should be chosen based on your specific application's requirements.

What tools are needed besides what's in this kit?

In addition to this kit, you will need a drill motor, a way to accurately measure and mark the crank snout (often using the harmonic balancer as a guide), and potentially a way to clean out the drilled hole. Refer to the manufacturer's instructions for any specific tool recommendations.

ATI Crank Pin Drill Kit LS1-LS7 L76 918993

Name: ATI Crank Pin Drill Kit - LS1 LS2 LS3 LS6 L76
Brand: ATI
Price: 149.21 USD
Availability: InStock

ATI Crank Pin Drill Kit - LS1 LS2 LS3 LS6 L76

$149.21

ATI Crank Pin Drill Kit for LS1-LS7 L76 engines. Ensures proper crank pinning for high-performance builds.

Key Features

Fits GM LS1, LS2, LS3, LS6, L76, L77, L92, L99, LSA, and LSX engines.
Provides a guide for accurate drilling and tapping of the crankshaft snout.
Ensures the harmonic balancer is securely pinned to the crankshaft.
Essential for high-performance LS engine builds and modifications.
Includes drill bit and tap for crank pin installation.

This drill kit is designed for a wide range of GM LS-based engines, including LS1, LS2, LS3, LS6, L76, L77, L92, L99, LSA, and LSX applications. Please verify your specific engine model for compatibility.

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Product Details

This is the ATI Crank Pin Drill Kit, designed specifically for GM LS-based engines like the LS1, LS2, LS3, LS6, L76, and others. If you're building a high-performance LS engine, especially one that will see significant stress or modifications like forced induction or a manual transmission swap, pinning the crankshaft is a critical step to prevent the crank snout from walking or spinning on the damper. This kit gives you the precise tools needed to drill and tap the crankshaft snout correctly for a crank pin, ensuring that the harmonic balancer stays securely in place.

ATI is well-known for making robust parts for demanding applications, and this drill kit is no exception. It includes a precision-drilled guide that mounts to your harmonic balancer, ensuring you drill straight into the crankshaft snout. This accuracy is key because a misaligned hole can compromise the integrity of the crank or the pin itself. The kit also comes with the necessary drill bit and tap to prepare the hole for a crank pin, which is sold separately. Having the right tools makes this job much more manageable and ensures a reliable outcome for your engine build.

Properly pinning your LS crank is a small step that can save you from catastrophic engine failure down the road. This kit simplifies that process, providing the confidence that the job is done right.