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Thread: V6 to 5.7 LS1 in an 02 Sierra

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  1. #1
    Join Date
    Jul 2008
    Location
    North Florida
    Posts
    18
    I should have thought of that. Was going by ALLdata specs that said V6 pump supplied 60-66 psi. So had it in my head that pressure was OK. But if the regulator is messed up, who knows what's on the manifold. I'll check that today. Thanks RHB.

  2. #2
    Join Date
    Jul 2008
    Location
    North Florida
    Posts
    18
    Pressure is 55 to 62 lbs.

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