LS Multi Layer Steel MLS Header Gasket Direct Replacement For GM 12617944 High Performance Beefy Exhaust Seal For LS1 LS2 LS3 LS6 LQ4 LQ9 4.8 5.3 5.7 6.0 6.2 Engines

LS Engine MLS Header Gasket Replacement for GM 12617944
✔️ Direct OEM-fit MLS gasket for LS1/LS2/LS3/LS6/LQ engines (single)

Designed to seal headers on GM LS-series engines, this multi-layer steel gasket is built for durability and leak-free performance during high-heat runs and power upgrades. It’s a direct replacement you can install without modifying factory components, making it ideal for engine rebuilds, LS swaps, and performance builds.

✅ Fits GM LS1/LS2/LS3/LS6 and LQ-series engines
✅ MLS construction delivers reliable sealing under high temps
✅ Direct OEM replacement, no special tools needed
✅ Silver finish resists heat and corrosion
✅ Prevents exhaust leaks and blowouts in header installs

💡 What is a high-performance MLS header gasket used for in GM LS engine builds?

This handy piece helps seal exhaust during swaps, rebuilds, and high-temperature runs. - exhaust-seal benefits for LS swaps - ensures leak-free header installation during performance builds - compatible with LS1/LS2/LS3/LS6/LQ-series engines ✝️