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Articles tagged with: Harley-Davidson

Nucleus Sport Elite Valves & Guides for Harleys

The Cylinder Head Shop introduces the Most Radical Valves Ever Designed for Harley-Davidsons.
The Nucleus Sports Elite FDS valves are made to the same exacting standards as all the others in our range and of the same high quality materials.
Note the special FDS Flame Deflector Stem on the exhaust valve. Although no heavier than a standard valve, in fact it …

Harley-Davidson Dual 10mm Spark Plug Head

The right way to convert a cylinder heads to twin plug!
The jig that is generally available to Harley-Davidson workshops and tuners, used to convert Harley-Davidson heads to a twin spark plug set up does not provide the best solution. Whilst this promises a performance increase, the end result is not the best regarding plug position in relation to the flame …