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Scott74d 09-05-2012 05:02 PM

better bolts for exhaust manifold
Im doing the exhaust manifold on my 99 tj. i already snapped one bolt and im sure ill snap more. my question is can I replace these biolts with a better grade that is more rust resistant? and if so where is a good place to get them? the old bolts need to be replaced anyways.

TJ4Jim 09-05-2012 06:43 PM

Are you talking about bolting up to the head or the exhaust pipe connection.

Scott74d 09-15-2012 08:07 AM

For the head itself, I snapped one and figure it's better to replace all the old rust prone bolts.

ciamex 09-15-2012 08:48 AM

I went to ACE and replacd all mine with grade 8's had to get a washer too... I figure the grade 8's can handle the heat better and when you have to crank them off they won't rotate the head off...

they are pricey though, but 3 years since the install... still look like the day I got em

Scott74d 09-15-2012 08:59 AM

Do you know the lot size by any chance? I have a 4.0

ciamex 09-15-2012 09:14 AM

no sorry... I just took one off and brought to ACE with me to size it up...

Scott74d 09-15-2012 09:18 AM

Thanks for the info! going to replace me manifold next weekend

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