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KN-Series Engine

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Product may vary from photo(s).


J&P Part: 420-288

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KN-Series Engine

• The KN series engines are very close in appearance to the stock Knucklehead engine, but offer a number of modern features for more power, better engine life, and improved reliability

• Aside from the much larger 93″ displacement, the main improvement in design is the 1958-65 style flywheel assembly, which uses a splined sprocket shaft and Timken sprocket shaft bearing

• Although this necessitates the use of a 1954-64 style inner tin primary cover and primary chain sprocket, the increased flywheel stability strength and power handling capacity are worth a slight departure from stock

• Flathead Power rocker arm cover “tins” are another modern improvement

• S&S has improved the design of the oil lines for better reliability and easier assembly and maintenance

• KN series engines come completely assembled and ready to run with a present SS Super Stock electronic ignition system and Super E carburetor

• KN Series engines come with a 12 month warranty

• S&S engines are shipped without oil

Made In The USA This product was proudly made in the USA

Product Specs

Manufacturer Part Number: 106-2161

Sold in Units: Each

Important Product Notes

Please send warranty card directly to S&S to activate warranty, and S&S will send out a Complimentary S&S Mechanics Jacket for the size indicated.

Shipping Note

An additional shipping charge of $125.00 will be applied for shipments within the contiguous U.S. Additional oversized shipping charges will be applied for expedited shipments within the contiguous U.S. Shipping charges outside the contiguous U.S. are calculated by weight and dimension during checkout.

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