Flathead Power 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. Ideal for bikes with stock drive train. Won’t break your stuff!
Features and Benefits
- Standard 74" compression 7.5:1
- Authentic generator style crankcases
- Super E carburetor
- 346 camshaft
- Super Stock® ignition
- Hi-temperature black cylinders and heads
- One year warranty
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.