BILLFARO LS Timing Cover Alignment Tool - Billet Aluminum Seal Installer (Red) for LS1/LS2/LS3/LS6/LQ4/LQ9 4.8–6.2L, CNC Precision

BILLFARO LS Timing Cover Alignment Tool is a billet-aluminum installer that centers front and rear timing covers and seals for GM LS-series engines to reduce seal misalignment and potential leaks.

This precision alignment kit is designed for LS-family engines (LS1, LS2, LS3, LS6, LSx, LQ4, LQ9 and 4.8–6.2L variants) and helps mechanics and engine builders seat timing covers and lip seals concentrically around the crankshaft. Machined from billet aluminum with steel components where needed, the tools mimic the harmonic balancer to locate seals against the crank snout so covers can be tightened in the correct position before final assembly. Using the right installer keeps seal bores and crankshaft surfaces aligned, simplifying rebuilds and reducing the chance of leaks caused by off-center covers.

How does this tool center the timing cover during installation?

The alignment adapter slips over the crankshaft snout and simulates the balancer’s outer diameter so the cover’s seal bore nests concentrically around the crank. With the tool in place you can loosely position the cover, verify alignment to the oil pan, then torque the bolts to specification while the cover remains centered.

• Large and small ends to fit different crank snout profiles
• Two 180° keyway slots to accommodate single or dual keyway cranks
• Slightly oversized outer diameter to engage the oil pump opening for better centering

What engine families and displacements is this kit compatible with?

This installer set was made specifically for GM LS-series platforms, covering commonly used generations and castings from small-block style LS engines to truck-based LQ variants. It supports common displacements found across LS, LS1, LS2, LS3, LS6, LQ4 and LQ9 engines and the 4.8, 5.3, 5.7, 6.0 and 6.2 liter versions.

• Fits LS1, LS2, LS3 and LS6 passenger-car blocks
• Compatible with LS truck blocks including LQ4 and LQ9
• Works with 4.8, 5.3, 5.7, 6.0 and 6.2L engine displacements

What materials and tolerances does the tool use to ensure accuracy?

The alignment pieces are CNC-machined from billet aluminum for concentric accuracy and durability, with steel components where added strength is required. Tight machining tolerances mean the tool repeatedly centers covers without deforming the seal bore or crank snout during installation.

• Billet aluminum body for precise concentricity
• Quality steel parts for wear resistance and longevity
• Engineered fit to mimic balancer diameter and locate seals accurately

How do I use the installer for front and rear cover fitting?

There are two common methods depending on whether you install the seal into the cover first or assemble the cover loosely: place the new seal into the cover, loosely bolt the cover, then slide the tool over the crank snout (use the small end) and check alignment before tightening. Alternatively, install the cover loosely, use the large end over the snout to verify alignment to the oil pan, then torque the bolts to spec and finish with the balancer lip seal.

• Method A: seal into cover, loose bolts, small-end tool, torque to spec
• Method B: loose cover, large-end tool, align to oil pan, torque to spec
• Finish by installing the harmonic balancer and verifying seal orientation

Who is this for: This BILLFARO alignment kit is built for professional and home engine builders, automotive technicians, and performance enthusiasts who rebuild or service GM LS engines and want a repeatable, precise way to align timing covers and lip seals. If you work on LS-series engines and value accuracy, reduced rework, and lower leak risk, this tool simplifies cover installation and speeds up reliable assembly.