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Re: Sealing the 383 intake manifold
[Re: calrobb2000]
#1686044
10/15/14 03:02 AM
10/15/14 03:02 AM
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Joined: Feb 2012
Posts: 137 midwest - USA
69/70 Plymies
OP
member
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OP
member
Joined: Feb 2012
Posts: 137
midwest - USA
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Quote:
hi stock cast intakes do not use any gasket other than the valley pan !
Are you kidding me? No wonder I'm having trouble. Gaskets were on the engine when I tore it down before the rebuild. Are the gaskets only used on aluminum intakes?
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Re: Sealing the 383 intake manifold
[Re: skicker]
#1686047
10/15/14 09:34 AM
10/15/14 09:34 AM
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Joined: Jan 2003
Posts: 21,079 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: 21,079
Niles , Ohio
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Since the 60s Ive just used the tins.Even on my 440 alum heads and intake its just tin.No leaks ever.Rocky
Chrysler Firepower
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Re: Sealing the 383 intake manifold
[Re: Pynzo]
#1686048
10/15/14 10:28 AM
10/15/14 10:28 AM
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Joined: Feb 2012
Posts: 137 midwest - USA
69/70 Plymies
OP
member
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OP
member
Joined: Feb 2012
Posts: 137
midwest - USA
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If a person does use the Copper RTV, do you apply it around all ports and on all connecting surfaces?
Last edited by 69/70 Plymies; 10/15/14 10:31 AM.
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Re: Sealing the 383 intake manifold
[Re: Pynzo]
#1686051
10/15/14 02:23 PM
10/15/14 02:23 PM
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Joined: Feb 2012
Posts: 137 midwest - USA
69/70 Plymies
OP
member
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OP
member
Joined: Feb 2012
Posts: 137
midwest - USA
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Just trying to get to the bottom of this question....Were the original 383 intake manifolds from the factory in 1970 with gasket/valley pan/gasket or just valley pan? I have seen both claims, which is correct? P.S. The shop wants me to mill the intake in order to get proper intake bolt alignment and use the paper gaskets along with the valley pan per AERA's and Hughes Engine's recommendations. Pynzo...10-4 on the use of the copper, matches the paint just like you say!
Last edited by 69/70 Plymies; 10/15/14 02:27 PM.
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Re: Sealing the 383 intake manifold
[Re: 69/70 Plymies]
#1686052
10/15/14 02:45 PM
10/15/14 02:45 PM
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Joined: Jan 2003
Posts: 1,456 Northern CA
streetkit
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,456
Northern CA
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No paper gaskets from the factory. Valley pan only.
1973 Dodge D100
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Re: Sealing the 383 intake manifold
[Re: skicker]
#1686055
10/15/14 03:47 PM
10/15/14 03:47 PM
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Joined: Jan 2003
Posts: 75,062 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,062
U.S.S.A.
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Quote:
Quote:
If a person does use the Copper RTV, do you apply it around all ports and on all connecting surfaces?
That's what I did except I used the black rtv.
You better pray you don't have to take that intake off , ever ... it's going to be a mess getting that off .
OP , the paper gaskets that come with the valley tin are .030 thick EACH , of course you will have alignment issues.
I like to use an .015 thick gasket to help seal because I hate having to scrap off sealer So I usually have .015 taken off the intake so I can use them .
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Re: Sealing the 383 intake manifold
[Re: streetkit]
#1686056
10/15/14 03:48 PM
10/15/14 03:48 PM
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Joined: Jan 2003
Posts: 75,062 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,062
U.S.S.A.
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Quote:
No paper gaskets from the factory. Valley pan only.
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Re: Sealing the 383 intake manifold
[Re: JohnRR]
#1686057
10/15/14 06:40 PM
10/15/14 06:40 PM
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Joined: Jun 2004
Posts: 3,319 Chicago Burbs
sthemi
master
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master
Joined: Jun 2004
Posts: 3,319
Chicago Burbs
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Factory used only the tin gasket. I have reused them many times with no sealing issues. Normally I install them dry, except for the "V" area by the corners, where I put a dab of RTV sealer. Tin gasket works well with both alum and iron intake. The paper shims are only to be used to space up an intake that has been decked (milled) to correct any mismatch.
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