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Ex. manifolds- gaskets or no gaskets? #1292271 08/27/12 01:38 PM 08/27/12 01:38 PM
Joined: Feb 2003 Posts: 347 Kewaskum, WI K Kelob_pie OP enthusiast
Kelob_pie OP enthusiast K Joined: Feb 2003 Posts: 347 Kewaskum, WI	Hi Guys, I am going to be putting the stock 440 back into my New Yorker, and I was going to put the exhaust manifolds back on with no gaskets, just like the factory did I believe. However, my buddy stopped over and he said no way would he do that, he for sure would use gaskets and some high temp RTV. What works for you guys? Thanks for any info!

Re: Ex. manifolds- gaskets or no gaskets? [Re: Kelob_pie] #1292272 08/27/12 01:42 PM 08/27/12 01:42 PM
Joined: Nov 2010 Posts: 582 PA B BTTG mopar
BTTG mopar B Joined: Nov 2010 Posts: 582 PA	I put fel-pro's on my 440. just marked them with a sharpie and then cut out the visible gasket sections with a pair of tinsnips.... best of both worlds factory no gasket appearance as well as good sealing without resurfacing.

Re: Ex. manifolds- gaskets or no gaskets? [Re: Kelob_pie] #1292273 08/27/12 01:46 PM 08/27/12 01:46 PM
Joined: Jan 2003 Posts: 75,043 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,043 U.S.S.A.	Unless the surfaces are absolutely perfect as they were when fresh machined when new I'd use the gaskets . I use them even after having the manifolds resurfaced .

Re: Ex. manifolds- gaskets or no gaskets? [Re: JohnRR] #1292274 08/27/12 02:01 PM 08/27/12 02:01 PM
Joined: Jan 2003 Posts: 2,530 Nunya CA CR8CRSHR master
CR8CRSHR master Joined: Jan 2003 Posts: 2,530 Nunya CA	If all the surfaces are good and clean, you should have no problem with metal to metal contact. I would have a machine shop just take a cleaning swipe to the manifolds and the head surfaces just to be sure. If you must use gaskets, there is only one kind and one kind only for my money. That is the REMFLEX gaskets. All others just don't seal as well as they do. And no RTV or Copper sealer is needed. I am using the REMFLEX with HP manifolds on my 383 Satellite. From the first fire up to all the others I have had no exhaust leaks. Pony up and get the REMFLEX. You won't be disappointed...

Re: Ex. manifolds- gaskets or no gaskets? [Re: CR8CRSHR] #1292275 08/27/12 05:32 PM 08/27/12 05:32 PM
Joined: Mar 2010 Posts: 1,880 Out in Left Field, NY B bobs66440 top fuel
bobs66440 top fuel B Joined: Mar 2010 Posts: 1,880 Out in Left Field, NY	I would use gaskets for sure. There's no harm. I'm using FelPro with Permatex copper RTV. Quote: I am using the REMFLEX with HP manifolds on my 383 Satellite. From the first fire up to all the others I have had no exhaust leaks. Pony up and get the REMFLEX. You won't be disappointed... I agree, Remflex makes awesome gaskets. I'm using their flange gaskets...absolutely the BEST. If I had to install new header gaskets, it would be Remflex.

Re: Ex. manifolds- gaskets or no gaskets? [Re: bobs66440] #1292276 08/27/12 05:37 PM 08/27/12 05:37 PM
Joined: Dec 2007 Posts: 18,157 Mass DAYCLONA I Live Here
DAYCLONA I Live Here Joined: Dec 2007 Posts: 18,157 Mass	I usually spray the exhaust ports on the manifold with hi-temp engine paint, nice/thick, then install them wet and torque in place, and let dry for a day/2 that usually seals them good

Re: Ex. manifolds- gaskets or no gaskets? [Re: DAYCLONA] #1292277 08/29/12 12:47 AM 08/29/12 12:47 AM
Joined: Jun 2004 Posts: 3,319 Chicago Burbs sthemi master
sthemi master Joined: Jun 2004 Posts: 3,319 Chicago Burbs	Typically, I take a 12 inch mill file and knock down any high spots on the manifold, then install with NO gasket... In 40 years, only one manifold had to come back off for a gasket.. Video Little Red Wagon Indy Nats,BurnoutContest

Re: Ex. manifolds- gaskets or no gaskets? [Re: sthemi] #1292278 08/29/12 04:44 AM 08/29/12 04:44 AM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	NAPA sell a gasket fron VICTOR HEINZ that is made with a lot of graphite that is a lot like the REMFLEX. I have never seen/used a RIMFLEX gasket but I have used the VICTOR HEINZ. gaskets. I am absolutely sold on them. Thet are the only exhaust gasket I will ever use on anything.. . I am truckless..

Re: Ex. manifolds- gaskets or no gaskets? [Re: 340SHORTY] #1292279 08/29/12 02:33 PM 08/29/12 02:33 PM
Joined: Jul 2006 Posts: 44 Texas blewbyu2bad member
blewbyu2bad member Joined: Jul 2006 Posts: 44 Texas	Anyone ever use the copper gaskets? Mine is a 340. Friends Don't Let Friends Drive GM

Re: Ex. manifolds- gaskets or no gaskets? [Re: sthemi] #1292280 08/29/12 04:09 PM 08/29/12 04:09 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: Typically, I take a 12 inch mill file and knock down any high spots on the manifold, then install with NO gasket... In 40 years, only one manifold had to come back off for a gasket.. Me too, I like dayclona idea also if it's a new build, otherwise bare after it's flat. Last edited by Challenger 1; 08/29/12 04:11 PM.

Re: Ex. manifolds- gaskets or no gaskets? [Re: Challenger 1] #1292281 08/29/12 04:23 PM 08/29/12 04:23 PM
Joined: Aug 2005 Posts: 697 Central IL 70Sbird mopar
70Sbird mopar Joined: Aug 2005 Posts: 697 Central IL	Quote: Quote: Typically, I take a 12 inch mill file and knock down any high spots on the manifold, then install with NO gasket... In 40 years, only one manifold had to come back off for a gasket.. Me too, I like dayclona idea also if it's a new build, otherwise bare after it's flat. using the large flat file on both the heads and manifolds is the key to making this work. I also spread a very thin smear of copper RTV on with my finger (same thought as the paint comment above) just for insurance A little time spent here will go a long way.

Re: Ex. manifolds- gaskets or no gaskets? [Re: 70Sbird] #1292282 08/29/12 08:58 PM 08/29/12 08:58 PM
Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN R Rug_Trucker I Live Here
Rug_Trucker I Live Here R Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN	Clean with 3M air powered pad. Thin coat of copper RTV and no gaskets. I'm a college drop out, therefore it works for me! "The only thing to do for triumph of evil is for good men to do nothing" "NUNQUAM NON PARATUS!"

Re: Ex. manifolds- gaskets or no gaskets? [Re: Kelob_pie] #1292283 08/29/12 10:37 PM 08/29/12 10:37 PM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	I spread high temp silicone on the manifold. Let skin. then install and snug up wait 1 hour and tighten good.

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