S&S Cycle MK136 Black Edition Engine

• Massive 136 cubic inch complete crate engine built on premium MKB-Series crankcases

Cylinder Heads:

• High-flow cylinder heads with premium seats, guides, valves, springs, and seals
• +1.00 mm oversized intake and exhaust valves
• Valves are 0.030" longer than stock for improved valvetrain geometry
• 0.605" max lift valve springs
• High-strength alloy used in cylinder head casting, and provides improved strength at high temperatures
• 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

MK136B:

• 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
• Made in the USA