Fitment:
NOTE: TWIN COOLED HEAD GASKETS WILL RETRO TO AIR COOLED HEADS & CYLINDERS
* S&S Big Bore Cylinder Kits, 100ci or 110ci
* Harley-Davidson Twin Cam 4.000in. MLS Head Gaskets.
* Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a viton rubber coating.
* Compressed operating thickness is .040in.. (Pair)
