0.036in. Thick Cylinder Base Gaskets. Fits Big Twin 1966-1984 with Shovel Engine & 3-5/8in. Big Bore Cylinders.

Features & Benefits:-

* Fits Shovel Engine with 3-5/8" Bore.

* Includes Front & Rear Aluminum Foamet Gaskets with Bead.

* Sold as a Pair.

Tech Tips:

* 0.031" Starting Thickness.

* 0.025" Final Crush.

* Foam Covered Metal (Foamet) is similar to RCM ecept that the Rubber has been Processed to yield a Sponge-Rubber Surface. Normally with Aluminum Core.

* Elastomer Bead applied to Areas of the Gasket to improve Sealing. Varies between Silicone & Nitri le Depending on the Application.

Proudly Made in the USA by James Gaskets !

MFR PART No: JGI-16777-66-X

ROLLIES PART No: JGI-16777-66-X