S&S KN93 Complete Assembled Engine

Alternator/generator style KN-Series engines are very close in appearance to a 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 inch displacement, the main improvement in design is the 1958-1965 style flywheel assembly, which uses a splined sprocket shaft and Timken sprocket shaft bearing, this necessitates the use of a 1955-1964 style inner tin primary cover and primary chain sprocket. S&S Vintage rocker arm cover tins are another modern improvement.

The KN93 is a standard compression 93 engine and is available with authentic generator style crankcases for early style chassis, primary and transmissions, and with alternator/generator style cases for use with 1970 and later primary covers and late style transmissions.

Features and benefits include:

  • Natural crankcases and black powder coated cylinders and heads
  • S&S Super E carburetor
  • S&S valve train - solid lifters
  • S&S Super Stock single fire ignition system and polished billet timer
  • Alternator and alternator/generator models have correct sprocket length sprocket shaft for 1970-Up primary and transmission
  • Alternator/generator engines include oil filter mount for generator location
  • One year warranty
  • Fits 1970-1999 Harley-Davidson custom chassis
  • Alternator/generator cases have 1948-1999 style front motor mount
  • Will not fit stock knuckle frames
  • Comes completely assembled and ready to run.

Alternator/generator cases have 1948-'99 style front motor mount. Will not fit stock knuckle frames. Generator style engines have stock motor mounts for 1936-'47 style frames, but can be used in 1948-'99 style frames with front motor mount spacer, part #31-2017 (included). Alternator/generator cases require a transmission with 1970-up length mainshaft, and custom exhaust pipes must be fabricated.

Instructions Link (Click Here)

Manufacturer: S&S Cycle

Part #: 106-2560

Freight Charges
Complete Motor S&H$125.00

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S&S KN93 Complete Assembled Engine 106-2560

  • Brand: S&S Cycle
  • Product Code: 106-2560
  • Availability: In Stock
  • $9,499.95

Tags: S&S Cycle, Harley Davidson, Classic Pre-1984, Engine, Long Block, Long Blocks