GM LS1 Timing Cover Alignment Tool Use without Front Seal in Cover

GM LS1 Timing Cover Alignment Tool (Use Without Front Seal in Cover)

GM LS timing covers and rear covers lack dowel pins, which can leave the crankshaft centerline alignment to chance and lead to leaks or even cracking during installation. This Aeroflow Performance alignment tool is engineered to solve that problem by centering the front or rear cover as it’s installed, helping you achieve proper alignment and a reliable seal. Designed for use without the front seal in the cover, it provides a precise reference point so you can install the seal with confidence.

Key benefits

• Centers the front or rear timing cover to the crankshaft centerline on GM LS series engines, eliminating guesswork during installation.
• Supports accurate alignment for both front and rear covers, reducing the risk of leaks at the front seal and rear main seal and minimizing potential cover damage.
• Facilitates seal installation by lightly tapping the tool with a rubber mallet, while its plastic construction protects the engine and the seal from damage.
• Designed for use without the front seal in the cover when needed, simplifying the installation process.
• From Aeroflow Performance—a trusted name in high-performance GM LS components.

Compatibility

Suit GM LS Series Engines, including LS1 platforms, with a focus on accurate timing cover alignment.

How it helps your project

By delivering precise central alignment, this tool helps you prevent common installation mistakes that lead to leaks or cracks. It’s especially valuable when assembling cut-to-fit front or rear covers where traditional dowel pins aren’t present. The result is a cleaner install, reduced warranty headaches, and improved engine reliability over the long term.