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5.3L Horsepower and Torque ratings

This is a discussion on 5.3L Horsepower and Torque ratings within the Technical / Maintenance forums, part of the General Discussion category; also 05 is when they started the E-fans instead of the Clutch fans like 04 and down wasnt it?? didnt ...

  1. #21
    Registered User 951500's Avatar
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    Sep 2007
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    Re: 5.3L Horsepower and Torque ratings


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    also 05 is when they started the E-fans instead of the Clutch fans like 04 and down wasnt it?? didnt that help any on the 05 models? just my thought

  2. #22
    Registered User mred's Avatar
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    Re: 5.3L Horsepower and Torque ratings

    ls6 cam and 2500 stall should be plenty in a truck?

  3. #23
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    Dec 2003
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    Re: 5.3L Horsepower and Torque ratings

    old thread i know but need some advice from some of you that would know. I have a 1999 ecsb 4x4 with 4.8 and 3.73 gears. I tow 18 1/2 foot ski boat and it strains to pull it. Until i can afford to do a bigger engine swap, will sending the pcm to blackbear help with the towing or, because it is a 1999 with this dreaded slow PCM you guys speak of, will it not help?

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