Open Access Articles- Top Results for Lo-Ex


Lo-Ex is an aluminium alloy with a very small thermal expansion co-efficient. It contains approximately 14 per cent silicon, 2 per cent nickel, and 1 per cent each of copper and magnesium.[1]


It has been used extensively and successfully over the years for all types of piston,[2] including in Hillman Imp,[3] and Terraplane[4] engines.


  1. ^ Internal combustion engines illustrated. Long Acre, London: Odhams Press Limited. 1947. p. 85. 
  2. ^ R. Munro (1978). "Wellworthy get it under control". Industrial Lubrication and Tribology 30 (6): 224–235. doi:10.1108/eb053170. 
  3. ^ "The Imp Engine". 
  4. ^ "1936 Terraplane specifications" (PDF).