06-02-2012, 10:51 AM | #1 |
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spark plug gap 350
whats a good spark plug gap for a gen 1 350 with hei ignition?
i keep getting mixed answers from the internet ranging from .030 to .060
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06-02-2012, 10:51 AM | #2 |
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Re: spark plug gap 350
With HEI its .045
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06-02-2012, 02:12 PM | #3 |
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Re: spark plug gap 350
Still the same for a mildly built up motor 0.45? I have a edelbrock rpm intake and and edelbrock 600cfm carb. I know it has a cam in it but I could not tell you what kind. Conpresion is a even 180 across all pistons.
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06-02-2012, 02:15 PM | #4 |
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Re: spark plug gap 350
The only thing that matters for the spark plug gap is the ignition system. .045 is where it needs to be for an HEI. Any larger and the coil and module get overworked and a smaller gap will hurt fuel economy.
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06-02-2012, 02:23 PM | #5 |
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Re: spark plug gap 350
i set mine at .045
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06-02-2012, 03:14 PM | #6 |
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Re: spark plug gap 350
X3
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06-02-2012, 04:41 PM | #7 | ||
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Re: spark plug gap 350
.045 for HEI.
Learn it, live it, love it... Gary
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06-03-2012, 03:03 PM | #8 |
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Re: spark plug gap 350
x4
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06-04-2012, 01:21 PM | #9 |
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Re: spark plug gap 350
R44TS 0.045 gap
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06-05-2012, 11:47 PM | #10 |
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Re: spark plug gap 350
x6 I run .045 in mine, you can run a little more if you have lower compression (its harder to get a spark at higher cylinder pressures from high compression or boost) or a higher output coil.
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