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Header bolt coolant #1507800 09/26/13 12:37 AM 09/26/13 12:37 AM
Joined: Jan 2007 Posts: 123 Elizabethton Tn L louie heaton OP member
louie heaton OP member L Joined: Jan 2007 Posts: 123 Elizabethton Tn	Whats the best thing to put on header bolts on a big block, to keep the coolant from leaking, I guess you have to put it on both sides, I know the drivers side goes into water jacket. 70 T/A clone, Hensley built 440,(not much more than stock) Low 12's at Bristol,(17 miles from here)8 other various Mopars, used to have 800+ posts back around 2001.

Re: Header bolt coolant [Re: louie heaton] #1507801 09/26/13 12:40 AM 09/26/13 12:40 AM
Joined: Nov 2007 Posts: 21,855 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,855 Kirkland, Washington	Use the Teflon thread sealant. The uber sticky white goop in a tube. It will allow re-tightening the bolts over time without leaking.

Re: Header bolt coolant [Re: Pacnorthcuda] #1507802 09/26/13 01:09 AM 09/26/13 01:09 AM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	Leave the studs in, use nuts. I am truckless..

Re: Header bolt coolant [Re: 340SHORTY] #1507803 09/26/13 01:26 AM 09/26/13 01:26 AM
Joined: Jun 2009 Posts: 233 vashon island washington hunterstroble enthusiast
hunterstroble enthusiast Joined: Jun 2009 Posts: 233 vashon island washington	Loctite 592 teflon Sealer, as stated above. 1969 Dodge dart 500 stroker 1973 Dodge Challenger 440

Re: Header bolt coolant [Re: 340SHORTY] #1507804 09/26/13 05:36 AM 09/26/13 05:36 AM
Joined: Aug 2003 Posts: 6,301 colorado A a12superbee master
a12superbee master A Joined: Aug 2003 Posts: 6,301 colorado	Quote: Leave the studs in, use nuts. Only way to fly. The guy that did my motor convinced me to do that, I can't believe how many years I spent jacking around with those stupid bolts. I can't afford this. mark

Re: Header bolt coolant [Re: a12superbee] #1507805 09/26/13 10:31 AM 09/26/13 10:31 AM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	I also vote for the OE studs with the shoulder in the middle. Shorten the outer fine threaded portion till only enough threads remain for the nut to fit flush. any more than that greatly hampers fitment & is a waste & you can also use a high grade nut that is thinner so you can shorten it even further live every 24 hour block of time like it's your last day on earth

Re: Header bolt coolant [Re: RapidRobert] #1507806 09/26/13 11:59 AM 09/26/13 11:59 AM
Joined: Aug 2003 Posts: 11,179 Atco NJ DJVCuda I Live Here
DJVCuda I Live Here Joined: Aug 2003 Posts: 11,179 Atco NJ	Please keep in mind that teflon is a thread lubricant, for tapered threads, like NPT. Thread sealent is needed for threads like header bolts like permatex, or any other RTV. Thread lubricant will seal threads, but it's designed to allow proper torque for tapered threads.

Re: Header bolt coolant [Re: a12superbee] #1507807 09/26/13 12:05 PM 09/26/13 12:05 PM
Joined: Jan 2003 Posts: 75,125 A Banana Republic near you. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,125 A Banana Republic near you.	Quote: Quote: Leave the studs in, use nuts. Only way to fly. The guy that did my motor convinced me to do that, I can't believe how many years I spent jacking around with those stupid bolts. Especially if you have to pull the header to do a starter change and it requires draining the cooling system

Re: Header bolt coolant [Re: RapidRobert] #1507808 09/26/13 12:08 PM 09/26/13 12:08 PM
Joined: Jan 2003 Posts: 75,125 A Banana Republic near you. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,125 A Banana Republic near you.	Quote: I also vote for the OE studs with the shoulder in the middle. Shorten the outer fine threaded portion till only enough threads remain for the nut to fit flush. any more than that greatly hampers fitment & is a waste & you can also use a high grade nut that is thinner so you can shorten it even further I like to have a thread or 2 sticking out past any nut on anything I am assembling . .031 shouldn't be that big a deal unless you are trying to shave off every last gram of weight ...

Re: Header bolt coolant [Re: JohnRR] #1507809 09/26/13 12:40 PM 09/26/13 12:40 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Quote: I like to have a thread or 2 sticking out past any nut on anything I am assembling . .031 shouldn't be that big a deal unless you are trying to shave off every last gram of weight ... when I took up jogging & became a vegan (gradually on each) I lost more weight than was lost with the acquisition of the alum M/C/water pump/intake/valve covers/'source heads combined . I felt better & more importantly the car was faster live every 24 hour block of time like it's your last day on earth

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