WTB OEM 1970 LT1 pistons

Discussion in 'Swap Meet Section' started by Vettenick, Aug 12, 2021.

  1. Vettenick

    Vettenick Vettenick

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    Looking for oem pistons...thanks!
     
  2. clm69z28

    clm69z28 Veteran Member

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    I’ve got a set I just pulled out of a 70 LT1.
     
  3. Rosster

    Rosster Veteran Member Gold Member

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    The piston was made by trw (now called speedpro and owned by malhe). The exact replacement is L2304af. They come now only in .030 and .060 and also include a low friction coating on the skirts.

    05A94316-A736-4701-888C-E9BFD810281B.jpeg 4885B96C-F32A-4D11-84FB-4C672F0D6B84.jpeg
     
  4. Vettenick

    Vettenick Vettenick

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    Thanks! Did some research that they're not available until the end of this month or Sept. Are those photos your pistons? When/where did you get them?
     
  5. clm69z28

    clm69z28 Veteran Member

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    Are you looking for a standard bore piston size, or are you looking for a 30 or 60 over piston? Mine or standard bore.
     
  6. Vettenick

    Vettenick Vettenick

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    STD or 30 over.
     
  7. Vettenick

    Vettenick Vettenick

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    Do you have any photos? What would you want? Thanks!
     
  8. Rosster

    Rosster Veteran Member Gold Member

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    Summit didn't have them but jegs did. I bought them in late 2020 before parts shortages hit. Around $350 for the set. I rebuilt a 70 z28 in 1978 and it used the same part number but with the trw lable
     
  9. 2ndGenCrazy

    2ndGenCrazy Veteran Member

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    I have a set of GM standard bore from 1970 LT1. PM me if interested.
     

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