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S&S Cycle offers MK136 Black Edition engines for a variety of Harley-Davidson© oil-cooled Touring street bikes from 2017 and up. Details include: CYLINDER HEADS: * High-flow cylinder heads with premium seats, guides, valves, springs, and seals * +1mm oversized intake and exhaust valves * Valves are .030 in. longer than stock for improved valvetrain geometry * .605" max lift valve springs * High-strength alloy used in cylinder head casting, improved strength at high temperatures * Enlarged cooling passage around the exhaust seats * S&S Exclusive breather boxes CRANKCASE: * All premium quality components * 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: * Forged pistons * S&S performance oil pump and cam support plate * Premium tappets and tappet cuffs * Billet aluminum covers * Sprocket shaft spacer included * Champion spark plugs * Retains stock engine height * Includes cam cover badge * Powdercoat finish matches factory finish * Huge displacement increase means a huge power increase
Not Yet Reviewed
$11,999.95
S&S Cycle offers MK-Series Performance crankcases for a variety of Harley-Davidson Touring and Softail street bikes from 2017 and up. These assembly replacements enable you to build massive power easily and reliably, particularly with M8 engines, and stock cases can't provide the necessary quality base. MK-Series crankcases are designed to allow for larger bores, scrape more oil than stock, have a larger volume sump, and fit in a stock frame without modification. Order the model recommended for your application.
Not Yet Reviewed
$2,849.95
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