Cometic, EST top end gasket kit. S&S Evo 4" bore - All S&S Evo style engines with 4" bore cylinders 563588 With silver finished cylinders

With silver finished cylinders

and the rest of the engine

S&S offers a drill jig as MCS 518150

organic plates for OEM replacement

Cometic, EST top end gasket kit. S&S Evo 4" bore - All S&S Evo style engines with 4" bore cylinders 563588 With silver finished cylindersWith MLS (Multi Layer Steel) . 040" thick head gaskets. SLS (Single Layer Steel) cylinder base gaskets and SLS rocker cover gaskets used in these sets are . 020" thick and have . 001" of high temperature viton rubber coating on both sides. Kit comes with all gaskets, seals and o ring for a complete top end rebuild. Compatible with S&S cast or billet rocker covers.