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We supply ringsets and round wire circlips to suit all SPS pistons from leading ring manufacturers. Special Piston Services also offer specialised machining of customer pistons to help you obtain the best available to suit your needs.


  • Forged pistons made to order
  • Piston Resizing
  • Gas porting
  • Re-machining valve pockets
  • Piston dome alterations
  • Piston pin fitting
  • Circlip groove machining
  • And many other piston modifications


We can also supply thermal barrier coatings ceramic on the piston crowns and dry film skirt coatings on the piston skirt to help reduce friction and scuffing.