MK136 BLACK EDITION ENGINE

Introducing the next generation of Proven Performance for your 2017 & newer H-D Touring Models, the MK136 Engine.This is the newest version of the complete crate engines S&S is known for, ready to install in your M8 Touring bike. We took our MK-Series Crankcases, married them to the 136” cylinders and flywheels, and then fit High-flow cylinder heads with +1mm Valves and .605" springs. This huge displacement engine is sure to not only create huge power, but also put a huge smile on your face when you lay into the throttle. It is the purchaser's responsibility to consider the suitability for their application. Engine noise and damage from abuse is not covered under warranty.

Fitment

2017-2023 Harley-Davidson® M8 touring models (oil-cooled)

Features & Benefits

Cylinder Heads

High-flow cylinder heads with premium seats, guides, valves, springs, and seals
+1mm oversized intake and exhaust valves
Valves are .030” longer than stock for improved valve-train 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

MK136

Forged pistons
S&S performance oil pump and cam support plateP
Premium tappets and tappet cuffs
Billet aluminum covers • Sprocket shaft spacer included
Champion spark plugs • Retains stock engine height
Includes Cam Cover Badge
Powder coat finish matches factory finish
Huge displacement increase means a huge power increase

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

S&S® MK136 Engine Without Fuel And Ignition Systems
Chasis Style	Finish	Warranty	Part#
2017-2023 Touring Models (RACE ONLY)	Black Edition	1 Year	310-1289
2017-2023 Touring Models	Black Edition	1 Year	310-1290

MK136 BLACK EDITION ENGINE

S&S® MK136 Engine Without Fuel And Ignition Systems