Alignment Tool - GM LS Timing Cover w/Seal

The MR. GASKET Alignment Tool for GM LS Timing Cover with Seal is a precision-engineered device designed for LS engine builders, performance mechanics, and serious DIY enthusiasts working on Gen III and Gen IV small-block platforms. This tool addresses a critical challenge in LS engine assembly: achieving proper timing cover alignment without damaging gasket surfaces or creating oil leaks that plague hastily installed builds.

This alignment tool works by guiding the timing cover into perfect concentricity with the crankshaft snout, preventing the common mistake of cross-threading bolt holes or misaligning the seal journal. The compact design fits easily into tight engine bay configurations, and at just 0.14 lbs, it adds minimal weight to your toolbox while delivering repeatable results.

By using this tool, you eliminate the guesswork that leads to oil seepage around the cover gasket—a persistent issue when covers are installed by eye or using improper methods. This tool is essential for anyone performing full LS engine rebuilds, timing cover gasket replacement, or any operation requiring cover removal and reinstallation.