PCM 5.0 HO Injectors??

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  • WorstNautiqueEver
    • Mar 2018
    • 2

    • TX


    PCM 5.0 HO Injectors??

    Hey guys does anyone have any insight into the Injector setup on the 2000 PCM 5.0 HO motor? Mine are both beyond repair and I ended up finding what seems to be the same part but I want to be sure. I was able to get a set of injectors for a TBI 93 Chevy. Uses the 5.0 motor and same intake manifold and throttle body as the PCM. The injectors look almost identical in every respect except that the old one had 2 extra dimples on the actual injector face and the new one does not. I'm also not sure but it seems the new ones injector opening may be a hair larger than the old one. I've attached photos of each.


    Basically what I'm getting at is how varied could the flow rates possibly be on these motors? I would assume that if it fits it should do just fine but I really don't know much about TBI to be honest so I'm looking for second opinions.

    Pictures of both uploaded to imgur in the link below
  • WorstNautiqueEver
    • Mar 2018
    • 2

    • TX


    #2
    Sorry here's the link, new here
    https://imgur.com/a/VQ8z1

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    • svlkid
      • Nov 2016
      • 4

      • Victorville, CA

      • 2003 Super Air Signature

      #3
      Don't do it. They "look" identical but the flow rates are different. I'm speaking from experience. I put car injectors in my 5.7 throttle body and the boat ran like s**t. I brought them to a NAPA store and they put them on their injector cleaning machine which also measures the flow. They were different. I couldn't see any visual difference. Once I swapped to injectors made for that motor, she ran beautifully.

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