S&S MK136 Black Edition Engine W/475G Cam 4 Harley 17-23 Oil-Cooled M8 Touring

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 spring
• 475G gear drive cam
• 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
• Made in the USA

2023 Harley Electra Glide Highway King FLHFB, 2022-2023 Harley Road Glide ST FLTRXST, 2022-2023 Harley Street Glide ST FLHXST, 2019-2022 Harley Electra Glide Standard EFI FLHTI, 2018-2023 Harley CVO Road Glide Custom FLTRXSE, 2017-2023 Harley Street Glide Special FLHXS, 2017-2023 Harley Street Glide EFI FLHX, 2017-2023 Harley Road Glide Custom FLTRX, 2017-2023 Harley Road Glide Special FLTRXS, 2017-2023 Harley Road King Special FLHRXS, 2017-2023 Harley Electra Glide Police FLHTPI, 2017-2023 Harley CVO Street Glide FLHXSE, 2017-2023 Harley Road King Police FLHP, 2017-2022 Harley Road King EFI FLHR, 2017-2019 Harley Electra Glide Ultra Classic EFI FLHTCUI

Manufacturer's Warranty

EMIS 2, Emission compliant in all stated except California.