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spark plug gap for 97 5.7? contradicting sources

This is a discussion on spark plug gap for 97 5.7? contradicting sources within the Technical / Maintenance forums, part of the General Discussion category; i have a 97 K1500 5.7 and i don't know what to set the spark plug gap. the sticker under ...

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    Registered User andrewgri's Avatar
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    Question spark plug gap for 97 5.7? contradicting sources


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    i have a 97 K1500 5.7 and i don't know what to set the spark plug gap. the sticker under the hood and my truck manual say to gap them at .060 but my Chilton repair manual says .045. which is right? also, is there a different gap that would give me better gas mileage?(i don't care about hp or high performance, just gas mileage) i'm running autolite platinums ap605. is it true you can't re-gap platinums?

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    0_o o_0 0_o o_0 98GreenMachine's Avatar
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    Re: spark plug gap for 97 5.7? contradicting sources

    The sticker under your hood is correct, .060 is the proper gap on a conventional plug. Platinums can be gapped but care has to be taken to not damage the points on the tip of the plug.
    08 HHR LS - 2.2 | 5 speed | 30 MPG

    98 K1500 Z71 - 204k | L31 | 60E | 3.73's | 3" BL | 33x12.5x15 Dick Cepek F-C II's | Dynomax Ultra Flo X DI/DO | 14 MPG

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    4/6 dropped Silvy on 22s
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    Re: spark plug gap for 97 5.7? contradicting sources

    yeah they are gapprd at .60, I gap them at .60 in my 99 Tahoe.

  4. #4
    Tbi-MAX
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    Re: spark plug gap for 97 5.7? contradicting sources

    Quote Originally Posted by andrewgri
    i have a 97 K1500 5.7 and i don't know what to set the spark plug gap. the sticker under the hood and my truck manual say to gap them at .060 but my Chilton repair manual says .045. which is right? also, is there a different gap that would give me better gas mileage?(i don't care about hp or high performance, just gas mileage) i'm running autolite platinums ap605. is it true you can't re-gap platinums?
    1st, take those Ford plugs out of there! autolite is made by Ford!

    2nd, always get ACDELCO platinums, or rapid fires

    3rd, gap them to whats on your radiator shroud!

    you can also follow this thread: http://www.fullsizechevy.com/forums/...d.php?t=267790

 

 

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