S&S Cycle 2018+ Oil Cooled M8 Softail Models MK136B Black Edition Engine w/ 475G Cam

Introducing the next generation of Proven Performance for your 2018-2024 H-D® Softail® Models, the MK136B Engine . This is the newest version of the complete crate engines S&S is known for, ready to install in your M8 Softail. S&S took the MKB-Series Crankcases, married them to the 136" cylinders and flywheels, and then fit High-flow cylinder heads with +1mm Valves and .605" springs. This is everything you need to have the largest, most powerful, and most reliable crate engine on the market today.

High-strength alloy used in cylinder head casting, improved strength at high temperatures

S&S Cycle 2018+ Oil Cooled M8 Softail Models MK136B Black Edition Engine w/ 475G Cam

High-flow cylinder heads with premium seats, guides, valves, springs, and seals

Valves are .030" longer than stock for improved valvetrain geometry

1mm oversized intake and exhaust valves

All premium quality components

Sprocket shaft spacer included

.605" max lift valve springs

Billet aluminum covers