GM HEI Ignition Swap - Spark Plug Gap

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Apr 7, 2022 | 08:13 PM

JordanTaylor

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GM HEI Ignition Swap - Spark Plug Gap

Anyone know what size gap I should run on my spark plugs after converting to the HEI Module/Coil?

Ive heard the spark is stronger, should I gap them a bit more?

Thank you,

Apr 7, 2022 | 09:08 PM

coopster

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From: exo-reality -wave if you see me; Front Range, CO

In the interest of community building you should probably post pics.
Where'd you get the idea? That a 3V or 22R?

Apr 7, 2022 | 10:38 PM

JordanTaylor

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Ill keep that in mind! Sorry, its a 22r with weber carb.

Apr 8, 2022 | 11:22 AM

JordanTaylor

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Anyone know the spark plug gap with an HEI swap on a 22r?

Apr 8, 2022 | 01:49 PM

Melrose 4r

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From: 02176

A rule of thumb is .035” for a points ignition, .045” for an electronic ignition. That works fine.

Apr 8, 2022 | 03:43 PM

JordanTaylor

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Thank you sir.

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