Valley pan gasket only on 440 intake manifold?
#716460
06/05/10 12:21 AM
06/05/10 12:21 AM
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Joined: Jan 2003
Posts: 395
Knoxville, TN, USA
mantonas
OP
enthusiast
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OP
enthusiast
Joined: Jan 2003
Posts: 395
Knoxville, TN, USA
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I just removed the intake manifold from my 69 440. There's a very good chance that it has never been removed before. It only had a valley pan cover/gasket. I bought a gasket to replace it, and it came in two boxes, one with the valley pan cover/gasket, and one with 4 fibrous gaskets. I assumed that you were supposed to sandwich the valley pan gasket with a pair of fibrous gaskets between the intake manifold and the head. Is it okay to use just the valley pan gasket? Is that how they did it from the factory?
69 Chrysler 300 Convertible
77 Chrysler New Yorker Brougham 2-dr
03 Jeep Grand Cherokee Limited
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Re: Valley pan gasket only on 440 intake manifold?
[Re: forphorty]
#716462
06/05/10 12:41 AM
06/05/10 12:41 AM
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Joined: Aug 2003
Posts: 4,481
Mesa, AZ
Pat_Whalen
super gas
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super gas
Joined: Aug 2003
Posts: 4,481
Mesa, AZ
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Quote:
Factory 4v came with the valley pan only. 6 pak may have had the paper pieces, i don't know. Often times the paper gaskets will raise the intake too high and you won't be able to get the bolts in.
What he said.
I've run into height issues when doing it "correctly" by the book and using the runner gaskets and the pan simultaneously.
I speculate with some RTV, just the pan is enough. Make sure you get the corners where the heads mate to the block.
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Re: Valley pan gasket only on 440 intake manifold?
[Re: forphorty]
#716463
06/05/10 12:51 AM
06/05/10 12:51 AM
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Joined: Jan 2003
Posts: 395
Knoxville, TN, USA
mantonas
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OP
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Knoxville, TN, USA
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So it's okay without the fiber gaskets? Is it a good idea to use any RTV silicone?
69 Chrysler 300 Convertible
77 Chrysler New Yorker Brougham 2-dr
03 Jeep Grand Cherokee Limited
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Re: Valley pan gasket only on 440 intake manifold?
[Re: mantonas]
#716464
06/05/10 12:54 AM
06/05/10 12:54 AM
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Joined: Jan 2003
Posts: 395
Knoxville, TN, USA
mantonas
OP
enthusiast
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OP
enthusiast
Joined: Jan 2003
Posts: 395
Knoxville, TN, USA
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Oops, I posted before I saw where you said to use silicone.
69 Chrysler 300 Convertible
77 Chrysler New Yorker Brougham 2-dr
03 Jeep Grand Cherokee Limited
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Re: Valley pan gasket only on 440 intake manifold?
[Re: mantonas]
#716465
06/05/10 06:59 PM
06/05/10 06:59 PM
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Joined: Jan 2003
Posts: 395
Knoxville, TN, USA
mantonas
OP
enthusiast
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OP
enthusiast
Joined: Jan 2003
Posts: 395
Knoxville, TN, USA
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Just thought I'd give this a bump and see if there were any more people who might want to chime in with their personal experiences.
69 Chrysler 300 Convertible
77 Chrysler New Yorker Brougham 2-dr
03 Jeep Grand Cherokee Limited
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Re: Valley pan gasket only on 440 intake manifold?
[Re: mantonas]
#716466
06/05/10 07:12 PM
06/05/10 07:12 PM
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Joined: Jul 2003
Posts: 3,377
Rancho Cordova, CA
Exit1965
master
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master
Joined: Jul 2003
Posts: 3,377
Rancho Cordova, CA
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If I'm remembering right, I only used the fiber gaskets on the bottom (against the head), which I stuck onto the head with gaskacinch, then applied Hylomar to the rest of the intake sealing surfaces. For the front and back ends, I used black RTV.
My thinking in using the gaskets only on the bottom was that it would give the other things something to compress in to, and I knew the gasket I had gasgacinched to the head was sealed.
Hylomar is very good for intake sealing, and it comes apart very easily too.. it may be a bit more expensive than RTV but in my opinion it's worth it, and a little tube will last a long time.
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Re: Valley pan gasket only on 440 intake manifold?
[Re: mantonas]
#716467
06/05/10 07:13 PM
06/05/10 07:13 PM
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Joined: Feb 2003
Posts: 10,210
Someplace you aren't
SomeCarGuy
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 10,210
Someplace you aren't
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I never have been able to get the fiber gaskets in and still get the bolts started.
I run the blocked heat riser pans with some RTV on the corners.
I want my fair share
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Re: Valley pan gasket only on 440 intake manifold?
[Re: MoparforLife]
#716469
06/05/10 08:08 PM
06/05/10 08:08 PM
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Joined: Jan 2003
Posts: 21,072
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,072
Niles , Ohio
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I never used the fibers either in 40 years.I use a dab of silicone in the 4 corners and a thin bead under where the 2 hold downs go.Thats it.Rocky
Last edited by therocks; 06/05/10 08:09 PM.
Chrysler Firepower
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Re: Valley pan gasket only on 440 intake manifold?
[Re: ireland383]
#716471
06/06/10 12:15 AM
06/06/10 12:15 AM
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Joined: Jan 2003
Posts: 5,186
Wherever I am.
Junky
master
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master
Joined: Jan 2003
Posts: 5,186
Wherever I am.
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Quote:
I used the gaskets with aluminum heads because it was sucking oil without them. 
Same here. Was sucking oil without the gaskets. Aluminum has different expansion rates than iron. Have the gasket on the side of the intake, just one side. No more oil sucking into the cylinders.
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Re: Valley pan gasket only on 440 intake manifold?
[Re: Commando1]
#716473
06/06/10 11:08 AM
06/06/10 11:08 AM
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Joined: Jan 2003
Posts: 21,072
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,072
Niles , Ohio
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Aluminum heads and intake on my 440 aluminum intake iron on my kids 413.Ran just the tins for years and no leaks ever.If your intake and heads are true they seal.Ive even reused the tins before.Rocky
Chrysler Firepower
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Re: Valley pan gasket only on 440 intake manifold?
[Re: Pat_Whalen]
#716474
06/06/10 11:32 AM
06/06/10 11:32 AM
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Joined: Nov 2007
Posts: 21,823
Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,823
Kirkland, Washington
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Quote:
Quote:
Factory 4v came with the valley pan only. 6 pak may have had the paper pieces, i don't know. Often times the paper gaskets will raise the intake too high and you won't be able to get the bolts in.
What he said.
I've run into height issues when doing it "correctly" by the book and using the runner gaskets and the pan simultaneously.
I speculate with some RTV, just the pan is enough. Make sure you get the corners where the heads mate to the block.
Using RTV is a very good idea on both the front and back ends, including the 4 corners.
DO NOT use RTV around the intake runner ports! RTV is not compatible with gasoline!!!
Thats a bad practice.
I too have had oil suckage with using the pan only. I have also had the fiber gaskets squeeze out over time. I now superglue the gaskets to the pan, clamped in wood with the 4 bolts drilled through and the wood sandwich clamped over night before install. Very anal, very effective.
But mock it up first, as the thickness can be a problem with getting the bolts started as others have pointed out.
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