98Z28MrO

iTrader: (1)

My old header gaskets for my flowtechs are now pretty much useless... So does anyone have any suggestions for some good gaskets that wont leak?
Thanks alot.
Bryan

Another_User

Never use the gaskets that come with your headers. Always buy a set of OE GM manifold gaskets. They work perfectly, and they are metal so they won't blow out. Some people re-use their stockers, but I didn't think it would be a good idea for me because I would have been pissed if I had to pull the headers back off to put new gaskets on.

theblur98ss

iTrader: (71)

I'm using my stock set. This is the 4th differant set of headers I've had them on and they're still holding.

Tranzor

I just bought a new set of OEM style metal gaskets from Napa... work just fine, no leaks.

Another_User

I had no idea Napa made a set...interesting. But they probably weren't any cheaper.

Tranzor

I can't remember how much they were, honestly... but wasn't too expensive. They just happened to be more convenient than a dealership for me.

SScreaminDemon

im in the same boat, my flowtech headers leak like no other. i have to put it back in the shop on monday.

JEB99TA

iTrader: (32)

I'm changing headers and going with new OEM GM metal gaskets. My first set of headers, I used the paper gaskets which shipped with my JBA headers and they worked fine, but, if you don't re-torque them after they heat up, you'll stand a good chance of blowing a chunk out of the gasket. Go with the metal gaskets and torque the bolts down evenly in the correct sequence. Even with the metal gaskets, it wouldn't hurt to re-torque them after you've driven for a couple of hundred miles ... simply because heat effects any material ... irregardless of how temperature tolerant the material might be.

LawmanSS

iTrader: (19)

I'm on my second set of headers...I've used OEM metal gaskets both times with no problems...

JEB99TA

iTrader: (32)

... and no need for RTV sealer.

YellowToy/A

iTrader: (1)

Any one know the part number for the OEM GM metal gaskets. What is the best place to order them from?

Thanks

JEB99TA

iTrader: (32)

I just went to my Pontiac dealership today and ordered the gaskets. They were $16.63 each and a bag of 10 OEM header bolts was $11.90. Total with tax was $48.33 for both gaskets and the 10 bolts. Straight off the Parts Invoice, the Gaskets are part# 12558573 and the bolts were part# 11515758.