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 …

Triumph Twin Head Repair

A recent article about the repair of a classic Triumph Twin cylinder head, here.
Triumph 8 stud heads have always had a reputation for cracking due to their method of production. The heads had cone shaped cast in seats which meant they did not fall out but that they caused this cracking.
The Cylinder Head Shop has worked to develop a fix …

Nucleus Classic Elite Valves & Guides

The Cylinder Head Shop designs and manufactures its own range of ‘Nucleus Sports Elite’ brand valves and guides. These are current available for the following models. Please contact us for details of stock, and requests for other models and custom designed items.

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 …