Intake Manifold Question
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Joined: Apr 2007
Posts: 76
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From: Orlando Florida
Intake Manifold Question
I took my intake manifold to a local shop to have it cleaned. They took off the little pan that is attatched to the bottom. It looks like it is attatched with rivets or pins. I think I found the correct pins but I am not sure. Here is a link to what I think are the correct fastners. Also what is the function of this pan and should I use it.
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
Those are the correct type of rivets to use. The pan is there to help reject heat [coming from the engine] from getting to the intake and incoming air/fuel mixture. If it were me, I would replace it after you get done painting it. If you paint the plate, too, it won't reject the heat as well as if bare.
Le Mans Master
Joined: Apr 2004
Posts: 7,106
Likes: 38
From: Newark DE
save yourself the cost of shipping. When I needed new rivets after glass beading my manifold and had removed the pan I picked up the correct rivets at my local Chevy dealer's parts counter.
If I'm not mistaken, they were part #10229247 (but have the parts counter confirm that first). They ran $.63 each.
If I'm not mistaken, they were part #10229247 (but have the parts counter confirm that first). They ran $.63 each.
Le Mans Master
Joined: Oct 2000
Posts: 8,897
Likes: 1,355
From: Santa Ana CA
Those are the correct type of rivets to use. The pan is there to help reject heat [coming from the engine] from getting to the intake and incoming air/fuel mixture. If it were me, I would replace it after you get done painting it. If you paint the plate, too, it won't reject the heat as well as if bare.
Actually, just the opposite.
The pan is to keep the heat of the crossover pipe in the manifold from cooking (and coking) the oil to the bottom of the manifold in the lifter valley.
If the General was worried about heat in the carb, do you think he would have put an exhaust crossover running right under it? Furthermore, if keeping heat out of the intake charge was the intent, don't you think that the cover would shield the manifold runners too and not just the center (where the crossover is)?
Race Director
Joined: Sep 2001
Posts: 10,560
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From: Wellington, FL
St. Jude Donor '11 thru '25
Good question but the more I think about it, I don't think it's possible to do as when the cover is on, you don't have access to the other side. Again, I'm going on my memory which ain't as good as it used to be.
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From: Orange County Ca
Race Director
Joined: Sep 2001
Posts: 10,560
Likes: 439
From: Wellington, FL
St. Jude Donor '11 thru '25
I probably just used lock washers if I did use cap screws and nuts. I guess the only damage would be if they all came loose and the pan dropped.
