S&S Cycle MK136B Engine with 550G Cam — 2018–2024 M8 Softail — Race Only
S&S Cycle MK136B Engine with 550G Cam — 2018–2024 M8 Softail — Race Only
S&S Cycle MK136B crate engine with a 550G cam for compatible 2018–2024 Harley-Davidson Milwaukee-Eight Softail models. This engine is intended for race use only.
- MKB-series crankcases with 136-cubic-inch cylinders and flywheels
- High-flow cylinder heads with premium seats, guides, valves, springs, and seals
- Intake and exhaust valves oversized by 1 mm and 0.030 inch longer than stock
- Valve springs support 0.605-inch maximum lift
- High-strength alloy cylinder heads and S&S breather boxes
- Dual-Spray Piston Cooling Jets, precision-machined oil scraper, enlarged oil sump, and contoured crankcase floor
- Forged pistons, S&S performance oil pump and cam support plate
- Premium tappets and tappet cuffs; billet aluminum covers
- Sprocket-shaft spacer, Champion spark plugs, and cam-cover badge included
- Retains stock engine height; powder-coat finish matches factory finish
- one-year warranty
Confirm exact motorcycle fitment and installation requirements with JL Customs before ordering.
Shipping: Contact JL Customs to confirm freight charges and delivery requirements before ordering.
Restrictions: Race use only. This engine is not legal for sale or use in California on pollution-controlled motor vehicles.
Warning: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Part number: 310-1295.