T143 Black Edition Longblock Engine for Select 1999-'06 HD ® Twin Cam 88®, 95 ®, 103 ® Models - 635 GE Cams

The leader in performance motorcycle parts for Harley-Davidson® motorcycles and the powersports industry.

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.

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These top-quality Harley crate engines are made by S&S, one of the most respected names in V-twin manufacturing. You’ll find the perfect size and displacement, and just the right finish to fit the design of your bike.

May 26, 2024 · The MK136 is the latest crate engine from S&S Cycle for 2017-and-later Harley-Davidson M8 Touring models. The MK136 features the MK crankcase and its precision-machined oil scraper, patented dual-spray piston cooling jets and retention plate.

S&S Cycle MK136 Black Edition Engine With 475 G Cam For Harley. This is everything you need to have the largest, most powerful, and most reliable crate engine on the market today. Introducing the next generation of Proven Performance for your 2017 & newer H-D Touring Models, the MK136 Engine.

Discover the new Super Crate. Our biggest and toughest crate yet. Designed for storing larger items our standard crates couldn't fit like: LP vinyl records, large charger plates, laptop computers or desktops, 5-Gallon water jugs, propane tanks, and more! Reinforced handles and corners. Stackable on back and sides. Nestable on back and sides.

Boost your Harley's performance with S&S Cycle engines from Dennis Kirk. High-quality, reliable upgrades. FREE SHIPPING on orders over $89. Shop now!

Combining a new design forged piston with their 4.25” cylinders to net a tire melting 131 cubic inches when paired with their 4.625” stroker crank. “We build our big bore kits and cranks to much tighter tolerarances and with higher quality materials than the factory parts”, states product manager Grant Hilligass.