0.040in. Thick Cylinder Head Gaskets. Fits Twin Cam with 100ci or 110ci - 4.000in. Bore.

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 4.000" MLS Head Gaskets.

* Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a viton rubber coating.

* Compressed operating thickness is .040". (Pair)