L31 RPO Code???

Discussion in 'GM Powertrain' started by TrailFiend, Dec 31, 2007.

  1. TrailFiend

    TrailFiend New Member

    so, im decoding my RPO codes, and so far all is well...except when i got to the engine code which is "L31." this is what it says:

    L31 : 409 CID V8 400HP (SPECIAL HIGH PERFORMANCE-SOLID LIFTER CAM)

    i thought that it had a Vortec 350? can anyone clear this up for me please, thanks!
  2. GM_Guy

    GM_Guy New Member 100 Posts

    according to My list, L31 is :engine, gas, 8 cyl 5.7L CPI
  3. TrailFiend

    TrailFiend New Member

    that makes sense. im pretty sure i have a vortec 350 5.7L SFI.
    Last edited: Dec 31, 2007

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