As with everything in the engine rebuilding industry, technology has dictated how each aspect of the process has changed and how it has advanced. This also applies to something as seemingly simple as gaskets, and more specifically, Multi-Layer Steel (MLS) gaskets and block and head surface preparation.
In the never ending quest for better performance, durability and reliability, various types of surface coatings and treatments have evolved as solutions for problems that have vexed engine builders for years. Coatings that were once considered exotic race-only solutions are now being used on a wide variety of stock and performance applications. If you’re not