IMPORTANT INFORMATION.

IMPORTANT: Please Note ‘WE HAVE MOVED’ Back To Lincolnshire.
THE (Original) Cylinder Head Shop.
Tel/Fax: 00 44 (0)1507 357194
Mobile: 00 44 (0)7810 273600.
E-mail:len@cylinderheadshop.com
THE PRICE LIST”S ON THIS WEBSITE ARE OUT OF DATE.
PLEASE CALL OR E-MAIL FOR PRICES-COSTINGS-QUOTES-ADVICE.
Please do NOT read something on this website & presume the information herein is the only option available, Presumption is the creator of misunderstandings, Do …

Tuning for Speed

Philip Edward Irving OBE, C.Eng., M.I.Mech.E., M.S.A.E., (1903–1992) was an Australian engineer and author, most famous for the classic engine performance guide, ‘Tuning for Speed’.
Tuning for Speed should be on the top 10 list of just about everyone’s motorcycle classic book list and has been called “one of the best books ever written on the improvement of motorcycle engines”. …

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 …