The Cylinder Head Shop

Since 1993, The Cylinder Head Shop (previously of Wimbledon), has established its name as a leading specialist in cylinder head tuning and repairs for motorcycle road and racing engines, and other vintage and high performance motorsport vehicles.
The Cylinder Head Shop first pioneered the market leading Serdi valve and valve seat equipment for demanding air-cooled, high-performance engines, and especially vintage …

Rolling Roads in the UK

Carb Settings and rolling roads, how to set your head up properly.
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 …

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 …

Nucleus Sports Elite Valves and Guides

About 75% of the power in your engine comes from the cylinder head. In money terms, you get more B.H.P. from developing your head than any other other part of your machine. In other words, if you are looking for more performance cheaply, your head is the place to spend it on. You’ll get the best return.
Astonishingly, most head parts …