A multi-layer metal head gasket is actually a requirement for turbo apps. We run Cometic headgaskets on each individual vehicle. Typically a .040 thickness, but thickness need to be determined by your cylinder head and engine block deck measurements. I had been pretty satisfied with my working experience with northwest https://b16-engine-for-sale35746.spintheblog.com/33934328/considerations-to-know-about-honda-b16b-engine-for-sale