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What plug to run on a Gen 4 BBC 177 motor.

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What plug to run on a Gen 4 BBC 177 motor.

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Old 07-20-2013 | 07:34 PM
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sdrockslangers
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Default What plug to run on a Gen 4 BBC 177 motor.
I built 2 Gen 4 BBC motors with 177 blower. 3" pulley on the top and 6" on the bottom. What plug is every one running in their motors. I just want to make sure I am in the right range.

Thanks Steve
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Old 07-20-2013 | 09:18 PM
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proboat-wes
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ac-mr41t or equal,ran them for years
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Old 07-21-2013 | 12:38 AM
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badluck
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I would run NGK R5673-8. I have been using them in blown engines for years.
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Old 07-23-2013 | 04:26 PM
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ezstriper
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non resister plugs can wreak havoc on computers/MSD boxes....
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Old 07-23-2013 | 05:08 PM
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MILD THUNDER
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Originally Posted by badluck
I would run NGK R5673-8. I have been using them in blown engines for years.
Same here.
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Old 07-24-2013 | 01:20 AM
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Originally Posted by proboat-wes
ac-mr41t or equal,ran them for years
Yep, same plug as the Merc 525SC.
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