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Home » Public Forums » GMCnet » [GMCnet] Rockwell Aluminium Intake Manfold Gaskets
[GMCnet] Rockwell Aluminium Intake Manfold Gaskets [message #62034] Tue, 27 October 2009 22:17 Go to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
G’day,

I installed one of Gary Rockwell’s aluminum intake manifolds using Mr.
Gasket P/N 404 gaskets.

http://www.mr-gasket.com/ProductDetails.aspx?productID=652

It has been suggested that the gasket will burn out around the crossover in
the head.

If you have installed one of these manifolds I would like to know how:

1) what kind / brand / part number of gaskets did you use
2) did you install it using a block off plate on the head
3) how long have you been running the manifold (time)
4) how many miles have you put on the manifold

Thanks,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Rockwell Aluminium Intake Manfold Gaskets [message #62058 is a reply to message #62034] Wed, 28 October 2009 08:37 Go to previous messageGo to next message
Tangerine is currently offline  Tangerine   United States
Messages: 192
Registered: February 2004
Location: Livonia, MI
Karma: 0
Senior Member
Rob
I have just this year installed the Gary Rockwell Aluminum intake manifold
using the Mr. Gasket P/N 404 gaskets. I did not use the block off plates.
It has only went maybe 1000 miles so far. Maybe 200 miles at a time. It
does not boil my gas out of the carb any more. I love it for that.

Gary W. Mills (Livonia MI)
. ___________
./_][__][] []| 1974 GMC M/H
.*O-------OO-* Painted Desert
"Tangerine Dream" W/New Frame



-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org]On Behalf Of Rob Mueller
Sent: Tuesday, October 27, 2009 11:18 PM
To: gmclist@temp.gmcnet.org
Subject: [GMCnet] Rockwell Aluminium Intake Manfold Gaskets


G’day,

I installed one of Gary Rockwell’s aluminum intake manifolds using Mr.
Gasket P/N 404 gaskets.

http://www.mr-gasket.com/ProductDetails.aspx?productID=652

It has been suggested that the gasket will burn out around the crossover in
the head.

If you have installed one of these manifolds I would like to know how:

1) what kind / brand / part number of gaskets did you use
2) did you install it using a block off plate on the head
3) how long have you been running the manifold (time)
4) how many miles have you put on the manifold

Thanks,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426

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1974 GMC 260
Tangerine Dream
Livonia Michigan
Re: [GMCnet] Rockwell Aluminium Intake Manfold Gaskets [message #62066 is a reply to message #62058] Wed, 28 October 2009 09:31 Go to previous messageGo to next message
GMCWiperMan is currently offline  GMCWiperMan   United States
Messages: 1248
Registered: December 2007
Karma: 1
Senior Member
Since the fiasco with the Edelbrock iron plugs, I've put over 40,000
miles on that engine. Somehow, the water hasn't leaked through the thin
spots those plugs wore nor has the worn head bolt separated. More
important to the current discussion: The zinc I poured in the crossover
hasn't been running out the tailpipe. That being so, I don't think the
aluminum's going to be damaged by the exhaust gases.

JMHO,

Ken H.

Gary W. Mills wrote:
> Rob
> I have just this year installed the Gary Rockwell Aluminum intake manifold
> using the Mr. Gasket P/N 404 gaskets. I did not use the block off plates.
> It has only went maybe 1000 miles so far. Maybe 200 miles at a time. It
> does not boil my gas out of the carb any more. I love it for that.
>
> Gary W. Mills (Livonia MI)
>

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Re: [GMCnet] Rockwell Aluminium Intake Manfold Gaskets [message #62099 is a reply to message #62034] Wed, 28 October 2009 12:24 Go to previous messageGo to next message
bobby5832708 is currently offline  bobby5832708   United States
Messages: 237
Registered: November 2006
Location: Winter Springs FL
Karma: 3
Senior Member
Rob,

1. Mr Gasket 404 gasket set with a thin coat of grey Permatex silicone on each side.

2. No blockoffs.

3. Installed springtime (Mar-Apr) 2008. Don't remember exactly.

4. Don't know. Maybe 2500 to 3000 miles.

So far it works great!


Bob Heller
2017 Winnebago 29VE
Winter Springs FL
Re: [GMCnet] Rockwell Aluminium Intake Manfold Gaskets [message #62288 is a reply to message #62034] Thu, 29 October 2009 09:35 Go to previous message
DENNIS LEPARD is currently offline  DENNIS LEPARD   United States
Messages: 24
Registered: October 2005
Location: Depew, New York
Karma: 0
Junior Member
Last year when I installed the Rockwell manifold I used the Patterson block off plate and gasket. No problems so far after about 3500 miles. The only thing is we lost the smell of gas after a shut down. Another thing it starts right away when warm after a pit stop.

Dennis & Pia Lepard
Depew, NY
'76 Palm Beach
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