MCS-561811 - With 3.812" bore MLS (Multi-Layer-Steel) .030" thick head gaskets. The 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. K

Fitment:
92-99 Evo Big Twin with 3-13/16" big bore cylinders (NU)