Introducing the next generation of Proven Performance for your 2017-2023 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, giving a compression ratio of 11.0:1.
This is everything you need to have the largest, most powerful, and most reliable crate engine on the market today.
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 valvetrain geometry
* .605″ max lift valve springs
* High-strength alloy used in cylinder head casting, improved strength at high temperatures.
* Enlarged cooling passage around th e exhaust seats
* S&S Exclusive breather boxes
Crankcase:-
* All premium quality components
* Patented Dual-Spray Piston Cooling Jets
* O-ring sealing between case and cam support plate
* Precision machined oil scraper
* Enlarged oil sump
* Contoured floor allows oil to easily drain back to the sump
MK136 Engine:-
* Forged pistons 11:1 compression
* S&S 550 Gear Drive Cam
* 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
* Powder coat finish matches factory finish
* Huge displacement increase means a huge power increase
* 1 Year Warranty
Proudly Made in the USA by S&S Cycle !
Note: Will NOT work on Water Cooled CVO’s
MFR PART No: 310-1289
REVELRY PART No: SS310-1289
