S&S CYCLE MK136 Black Edition Engine – Oil Cooled – 49 State – M8 Touring 310-1290

MK136 Black Edition Engine – Oil Cooled – 49 State – M8 Touring

Cylinder Heads:, High-flow cylinder heads with premium seats, guides, valves, springs, and seals, +1.00 mm (EU 1,00 mm) oversized intake and exhaust valves, Valves are 0.030″(EU 0,030″) longer than stock for improved valvetrain geometry , 0.605″(EU 0,605″) max lift valve spring, Enlarged cooling passage around the exhaust seats, S&S exclusive breather boxes, Crankcase:, Patented dual-spray piston cooling jets, Precision machined oil scraper, Enlarged oil sump, Contoured floor allows oil to easily drain back to the sump, MK136:, Retains stock engine height, Includes forged pistons, S&S performance oil pump and cam support plate, premiun tappets and tappet cuffs, billet aluminum covers, sprocket shaft spacer, Champion spark plugs and cam cover badge