| Re: [GMCnet] Cracked intake [message #63611] |
Mon, 09 November 2009 17:04  |
chip
Messages: 37
Registered: November 2009
Karma:
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Member |
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Thanks Rob. Sounds like the Dick Paterson gaskets / block off's
should take care of me.
Appreciate the info / help !
Chip
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On Mon 09/11/09 1:25 PM , "Rob Mueller" robmueller@iinet.net.au
sent:
Chip,
I used Mr. Gasket fiber intake gaskets P/N 404 when I installed the
aluminum
intake manifold made by Gary Rockwell which does not have a
crossover.
Had I known that the Edelbrock 7284 was available I would have used
that
gasket because it has a Nitrile bead around the ports and the steel
core
which would provide more protection to the aluminum manifold where
it meets
the crossover ports in the heads than the Mr. Gasket fiber gaskets.
If I
ever had to remove the intake I would use the Edelbrock 7284 when I
re-installed it.
I have never seen the Edelbrock gasket and therefore can only assume
that
Summit is correct stating that the 7284 is correct for the 455. I
did check
the Edelbrock website and it notes the same thing.
I doubt that the steel core would be adequate to block off the
crossover
(for very long) because it probably is pretty thin. I did have a set
of Dick
Paterson gaskets with stainless steel block off plates and I would
GUESS
that they were around 0.40 thick. I decided that the Mr. Gasket
fiber
gaskets would be OK to use with the Rockwell manifold. Only time and
mileage
will tell if I was correct or not!
Here's a link to Dick Paterson's gaskets and block off plates:
http://www.springfield-ignition.com/blockoff.htm [1]
BTW you can easily see the difference in the port height between a
455 and a
403 in the photo!
Regards,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [2]
[gmclist-bounces@temp.gmcnet.org [3]] On Behalf Of chip@mach3isp.com
Sent: Tuesday, 10 November 2009 7:07 AM
To: gmclist@temp.gmcnet.org [4]
Subject: Re: [GMCnet] Cracked intake
Rob:
Are you saying these are the correct gaskets for a 455? And they
will be adequate to block off the heat crossover without filling it
in ?
Please advise, am new to this and in the process of pulling my 455
for
rebuild.
Thanks - Chip
1977 Clasco
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Links:
------
[1] http://www.springfield-ignition.com/blockoff.htm
[2] mailto:gmclist-bounces@temp.gmcnet.org
[3] mailto:gmclist-bounces@temp.gmcnet.org
[4] mailto:gmclist@temp.gmcnet.org
[5] http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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