[dollybud]

Can leaking header gaskets hurt anything in the long run? I've been told you could end up burning valves. Anyone tried the copper gaskets vs aluminum or steel? Thanks.

[1BAD80]

Yes on the burning valves, the metalic gaskets with screen inbetween the layers are some of the best to use. Never had one go bad yet.

[Dave E Shank]

HEY DOLLY: I have tried every header gasket and bolts known to present day man on headers. I have found that the soft metal on fiberboard, which are about $ 10.00 at NAPA work the best. Copper won't seal on a warped header flange no matter how tight you force the bolts. They are expensive and I have a whole box of them that never worked longer than a week. Mr Gasket also makes a good inexpensive header gasket. There should be info on their web site. Another tip I saw said to use BBC gaskets on SBC headers because the shape fit the outline of the header better GOOD LUCK....DAVE

[gt2betubbed]

Hey guys. I used an SCE copper gasket on my BBC, and I didn't have any exhaust leaks with mine, but I've heard they don't work that well. My Uncle uses the crushable aluminum style and he's never had one, and I have a couple of friends have switched and haven't had any problems yet. I think I'm going to also on my next motor.

[jimfulco]

Dave, which side goes toward the head?

[pasadenahotrod]

After buying God knows how many sets of header gaskets I finally listened to an old man in the neighborhood. I started using OEM style manifold gaskets like Victor makes M7110X and a ring of copper hi-temp silicone around the prts between the block and gasket. Gaskets installed with perforated metal face to block, composition side to header flange. I use the copper hi-temp in a ring around the gaskets on header flanges as well. Let the stuff set up per the directions before assembling and then you're there for the duration!