Setting up your Head Properly: Carburetion

After having your head re-worked to high quality, close tolerances, setting up your head requires expert help re-jetting the carbs. This will add to its performance, clean running, emissions level and longevity. Injection systems also require re-calibration, but this is not quite as critical.

We recommend that you use a rolling road with gas analysis equipment. In general, you will need …

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 …

IMPORTANT INFORMATION.

IMPORTANT NOTE WE HAVE MOVED TO WALES.
THE Cylinder Head Shop Will Reopen MID MAY, 2020.
THE PRICE LIST”S ON THIS WEBSITE ARE OUT OF DATE. PLEASE CALL OR E-MAIL FOR PRICES-COSTINGS-QUOTES.
Please do NOT read something on this website & presume the information herein is the only option available, Presumption is the creator of misunderstandings, Do Not Presume !
My Terms & Conditions …

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 …