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Old 04-09-2012, 11:20 PM   #1
frog210
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sparkplug ???

I just want to ask the sparkplug specs with ya;;
I got Bosch Super Plus plugs 7972
what do i torque them down too?
they say 15 ft lbs on the box,
but after some research it says 20 ft lbs
i have a 74 350 v8 4bbl
thanks
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Old 04-09-2012, 11:30 PM   #2
Square_78
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Re: sparkplug ???

just until they are snug and not much more. They strip out REALLY easy. I would go with the lower # of 15 ft lbs.
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Old 04-09-2012, 11:34 PM   #3
frog210
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Re: sparkplug ???

Okay cus I've been looking online and I kept coming up with 20,
But on the spark plug boxes they say 15
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Old 04-10-2012, 10:57 AM   #4
frog210
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Re: sparkplug ???



hey guys i need some help
i cant take out this spark plug
the 5/8 deep socket cant go on no way ive tried from all angles
i tried a 5/8 shallow socket with some vise grips didnt work
i tried a 5/8 wrench didnt work
im all out of ideas
do i have to take the headers off to do this?
Is it safe to drive like this cus i got work in 2 hours
i got the other 7 plugs changed
this one is on the passenger side 2nd one from the fire wall

Last edited by frog210; 04-10-2012 at 10:59 AM. Reason: forgot information
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Old 04-10-2012, 04:56 PM   #5
motornut
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Re: sparkplug ???

should be fine to run that short term
i had to make a wrench just for headers....
but you can buy them
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Old 04-10-2012, 07:02 PM   #6
CoggedBelt75
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Re: sparkplug ???

One like this should work. Break it loose with a wrench.
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Old 04-10-2012, 08:47 PM   #7
76stepsidechevy
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Re: sparkplug ???

I have a cut down spark plug socket for those. Then you can get a wrench on it.
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