Exhaust Gasket from header to ex.pipe - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Long Knight · 04-24-2003, 11:42 AM

I am going to replace the paper gasket between my header and exhaust pipe coupler (triangle shape with three bolt holes). I am wondering if you have to use a flat gasket or if you can use a doughnut gasket like they use on ram horns? Those doughnut gaskets seem like they work good.

I got a set of these thin copper flat gaskets I am thinking about trying to seal the suckers up. Are those good to use? If not I'll take them back because they were a little pricey. I'm just tired of hearing and smelling the exhaust leak!

Thanks everyone!

71Chev · 04-24-2003, 01:44 PM

Use the copper or aluminum. I used aluminum, and my flanges are bent at each bolt hole. They sealed up great. Should never have to buy any more header collector gaskets!

Long Knight · 04-24-2003, 01:46 PM

Thanks 71Chev

Longhorn Man · 04-24-2003, 11:59 PM

I'll second the dead soft alluminum ones.
I am running the same ones I bought fro an other truck with differant headrs...they been removed and installed so many times it is unreal...and still no leaks.

bobs409 · 04-25-2003, 07:18 AM

No need to buy expensive gaskets. If you goop on some RTV on both sides of those paper type gaskets, then bolt it up you won't have anymore leaks and it won't blow out.

04-24-2003, 11:42 AM	#1
Long Knight Spank 'em if you got 'em! Join Date: Nov 2002 Location: Kansas City Posts: 628	Exhaust Gasket from header to ex.pipe I am going to replace the paper gasket between my header and exhaust pipe coupler (triangle shape with three bolt holes). I am wondering if you have to use a flat gasket or if you can use a doughnut gasket like they use on ram horns? Those doughnut gaskets seem like they work good. I got a set of these thin copper flat gaskets I am thinking about trying to seal the suckers up. Are those good to use? If not I'll take them back because they were a little pricey. I'm just tired of hearing and smelling the exhaust leak! Thanks everyone! __________________ Long Knight '71 C-20, 350ci, TH350, Edl. 1406 Carb w/elec.choke, Ignitor ignition, Viper Tires, Orange Dipstick

04-24-2003, 01:44 PM	#2
71Chev Senior Member Join Date: Dec 2000 Location: Indiana Posts: 3,074	Use the copper or aluminum. I used aluminum, and my flanges are bent at each bolt hole. They sealed up great. Should never have to buy any more header collector gaskets! __________________ 71 Chevy CST Long Fleet 350/350/3.07 leaf rear.

04-24-2003, 01:46 PM	#3
Long Knight Spank 'em if you got 'em! Join Date: Nov 2002 Location: Kansas City Posts: 628	Thanks 71Chev __________________ Long Knight '71 C-20, 350ci, TH350, Edl. 1406 Carb w/elec.choke, Ignitor ignition, Viper Tires, Orange Dipstick

04-25-2003, 07:18 AM	#5
bobs409 1969 Custom 30 wrecker Join Date: Sep 2001 Location: Pottsville, Pa Posts: 2,611	No need to buy expensive gaskets. If you goop on some RTV on both sides of those paper type gaskets, then bolt it up you won't have anymore leaks and it won't blow out. __________________ Bob 63 Impala 283/PG/3.36 (under restoration) 66 Impala 327/PG/3.36 66 Chevelle SS 409/M22/3.55 69 Chevelle 307/PG/3.08 (future restoration) 69 C10 short stepside 454/TH350/3.73 69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!) 71 Cheyenne 20 fleetside 350/4 spd/4.10 71 Chevelle 6/PG/3.08 72 Chevelle 454/M21/4.10

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04-24-2003, 11:59 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	I'll second the dead soft alluminum ones. I am running the same ones I bought fro an other truck with differant headrs...they been removed and installed so many times it is unreal...and still no leaks.



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