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About Us

SERDI (UK) is the professional's single source for valve seat/guide, surfacing, boring and honing equipment, with a comprehensive range of high precision machinery for the engine re-manufacturer, works competition department & engine developer.

Technical support and expert back-up are provided by SERDI (UK)'s experienced personnel. Major spares and consumables (such as tools, cutting tips, valve guides and seats etc) are held in stock. Planned maintenance, routine servicing or emergency repairs can be carried out on SERDI (UK) supplied machines as well as other makes.

Other complementary equipment for the professional engine workshop available from SERDI (UK) includes:

  • Valve spring compressors - Govoni pneumatic valve spring compressors improve efficiency by speeding and simplifying the removal and replacement of valve springs - particularly those used in competition engines. The capacity covers the popular size range and the position of the pneumatic cylinder is adjustable to suit the precise dimensions of the head assembly being worked on.
  • Valve guides
  • Valve seat inserts



SERDI (UK)'s personnel's experience in undertaking the same type of work as the customers to whom they now supply equipment makes them best placed to advise on the most suitable machine and tooling. This expertise is maintained thanks to their extensive workshop facilities which enables techniques to be demonstrated and technical problems to be evaluated with clients.
Specialist precision engine preparation can also be carried out in the fields of:

  • cylinder heads repair and modification
  • static and dynamic balancing
  • honing & boring etc

particularly for vintage and historic competition engines.