Cannonball Cylinder Heads for Knucklehead
- Cylinder head set »Knucklehead« by Cannonball
- fits OHV models 1936-1947
- cast iron, bare
- nominal bore: 3-7/16 ”
- exhaust flanges G: Knucklehead
- head bolt pattern: Knucklehead
- intake manifold flanges: Knucklehead plumber type (1940-1947)
- oil supply: external
- plug threads: 1 x M18 x 1.5 x 12.7 mm
- replaces Harley-Davidson part number HD 16700-40, and 16697-40
- Germany
- gross weight: 17.92 kg
These Knucklehead style cylinder heads are precise reproductions of the stock counterparts and show all the small details like cast-in number tags and foundry markings. Thus they make for great replacements for your worn top end or to build a factory look-alike engine. They are manufactured after 1940-1947 heads with large intake ports. The pre-installed, but unmachined valve seats are sized for stock intake and exhaust valves and hardened for the use of today’s unleaded fuels.
Tech Tipp
Cannonball cylinder heads come unpainted and for good reason. It is difficult to protect your new paint, when machining valve seats, installing guides and tins etc., so we recommend to paint just the area around the guide holes and then press in guides with tins, machine seats and install valves. Once this is finished you cover the tins and completely paint the heads. This will guarantee a nice and unmarred paint job.
Accessories:
60-954
67-052
Cylinder Head Bolts Kits: Knucklehead
Spark Plugs #2: IOE, Flatheads and Knuckleheads
James Gasket Kits for Top End: Knucklehead 1936-1947
Knucklehead/Panhead Manifold Nipple Conversion Kit
Cups and Covers for Valve Springs/Rocker Arms
OEM Type Valve Collars
Gaskets for Cylinder Head: Knucklehead 3-5/16 ” and 3-7/16 ” Bore
KPM Black Diamond Valves - for Knucklehead 1936-1947
KPM Cast Iron Valve Guides - for Knucklehead 1000+1200cc 1936-1947
See also:
Cannonball Knucklehead Crankcases
Cannonball Aluminum Cylinder Heads for Knucklehead
Have any questions?
Our service team will be glad to help out: Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET, Phone: +49 / 931 250 61 16, eMail: service@wwag.com