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Cannonball Parts - New Horizons for Big Flatties, Knuckles and Pans

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Knucklehead Parts

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Knucklehead Parts

A true legend and without a doubt one of the milestones in the history of Harley-Davidson. Introduced in the year 1936 the ohv-engined models proved to be a huge success for the Motor Company, because customers quickly realized the outstanding qualities of this design. Consequently the Knucklehead became the prototype of the distinctive Milwaukee Big Twins, that influenced all successive models to the present day.

Cannonball Knucklehead Crankcases

Cannonball Knucklehead Crankcases

Reproduction crankcases which meet or exceed highest restoration demands. Cast from state-of-the-art materials and machined on CNC equipment for strength and precise fitment. Intended to work with stock or identically constructed engine components. Finished and detailed like the original counterparts so these cases will smoothly blend into your old mill to give it a new life. For ease of installation both case halves are carefully matched and feature pre-installed case bushings, which are line bored and lapped for standard rollers. Cam bushings are already in place and reamed. (For exact measures pls see facts).
All cases feature laser-engraved CB production numbers, which are registered and filed.

Cannonball Aluminum Cylinder Heads for Knucklehead

Cannonball Aluminum Cylinder Heads for Knucklehead

Precise reproductions of stock Knucklehead cylinder heads, cast from aluminum. Besides the significant weight savings of approx. 4 kg per head they dissipate heat much better than their cast iron counterparts. They are manufactured after 1940-1947 heads with large intake ports. The valve seats are pre-installed, but unmachined and sized for stock intake and exhaust valves. They are hardened for the use of today’s unleaded fuels. Steel inserts for the head bolts feature factory threads. The heads show all the small details like cast-in number tags and foundry markings, so they make for excellent stock replacements or for building a performance engine with factory look when you camouflage them with black paint.

Cannonball Rocker Housings

Cannonball Rocker Housings

Authentic reproductions of Knucklehead rocker housings as used by the factory from 1938-1947. You can install them as they come or brush and polish to your personal liking. Precisely machined on CNC equipment for a perfect fit.

Cannonball Lightning Cam Knucklehead

Cannonball Lightning Cam Knucklehead

Precise reproduction of the factory cam as used in 61” OHV Knuckleheads 1936-1939. All measurements and specs were taken from an original example. It features the distinctive six lightening holes in the gear, hence the nickname "Light(e)ning" cam. Fits all Knucklehead 61” and 74” models and years.

Cannonball Knucklehead Tappet Guides

Cannonball Knucklehead Tappet Guides

Knucklehead tappet guides are rare bits and examples, that are still in good working condition, are almost impossible to find.
But help is on the way: Cannonball tappet guides are cast and meticulously machined in Germany to OEM specs and fit OEM and Cannonball Knucklehead cases. Just paint or coat them and you're ready to go.

Cannonball Knucklehead Weld-on Rocker Housing Tabs

Cannonball Knucklehead Weld-on Rocker Housing Tabs

A typical problem of original Knucklehead cylinder heads you find on swap meets are missing tabs for the rocker housing. These cast iron weld-on or solder-on tabs might help you make a good deal. They are made exactly like the original tabs and after you have drilled and trimmed them to length you just have to find a good welder to put them back onto your heads.

Cannonball Knucklehead Oil Pump

Cannonball Knucklehead Oil Pump

Reproduction of the early Knucklehead cast iron oil pump as used by the factory 1936-1940, however, the pump will fit all Knuckles and even early Panheads (with solid lifters). It comes un-assembled with all gears, check valve and bypass valve.

Cannonball 2-Bolt Manifolds for Knucklehead and Panhead

Cannonball 2-Bolt Manifolds for Knucklehead and Panhead

Custom intake manifold which allows direct installation of Bendix and Keihin (butterfly) carburetors on 1940-1954 Knuckleheads und Panheads without adapters or cylinder head modifications. Made extra wide (97 mm), which is excellent when you build an engine with longer cylinders or stroker plates. Requires to be shortened to match the respective situation.

Cannonball Knucklehead and Panhead Manifolds 1940-1954

Cannonball Knucklehead and Panhead Manifolds 1940-1954

Reproduction of the stock intake manifold for Knuckleheads and Panheads in lightweight cast aluminum. Made extra wide (97 mm), which is excellent when you build an engine with longer cylinders or stroker plates. Requires to be shortened to match the respective situation.

Cannonball Rocker Arm Shaft Nut Washer

Cannonball Rocker Arm Shaft Nut Washer

Accurate reproduction of the brass seal washer for Knucklehead right side rocker arm shaft nuts.