Fitments
86-90 4-speed XL Sportster with 3-3/4" big bore cylinders (NU)
Part Description
Cometic, EST top end gasket kit. Evo XL 3-3/4" big bore
With 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.
