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• Entries in the alphabetical listing are arranged first by engine displacement, then by years.
  
  
• Pistons are for gasoline engines unless noted otherwise.
  
  
• Suffix "D" following a piston number denotes a DUALOY piston with an Al-Fin bonded ferrous (iron) top ring groove protector.
  
  
• Prefix "H" denotes a HYPEREUTECTIC piston.
  
  
• Prefix "HT" denotes a HYPEREUTECTIC T6 HEAT TREATED piston.
  
  
• Suffix "LR" denotes left or right cylinder bank only. SINGLES FROM FACTORY ONLY.
  
  
• Passenger car, light and medium duty truck pistons are destroked to allow for block and cylinder head resurfacing. This reduces the compression ratio by approximately 1/4 ratio if the block and head have not been resurfaced. Many hypereutectic pistons have not been destroked. It is suggested that the compression height be checked before ordering.
  
  
• The compression ratio is the ratio that will result when the standard size Silvolite piston is substituted for the original equipment piston. These ratios have been calculated from the best published data available to us. While every effort has been made to use authoritative sources we cannot vouch for the correctness of such data and hence cannot assume responsibility for the accuracy of compression ratios calculated there from.
  
  
• Boring an engine .030" oversize will increase the compression ratio approximately 1/10 of a ratio, boring to .060" oversize approximately 1/4 of a ratio.
  
  
• All pistons are furnished with pins and, if required, lock rings.
  
  
• Oversize pistons are offered solely in response to customer demand, and in offering them United Engine and Machine Company makes no warranty, either expressed or implied, as to the oversize to which an engine can be safely bored nor as to availability of piston rings. NOTE: .080" over sizes available from factory only @ $3.00 more per piston.