Carb Mounting Issue
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Senior User
Joined: Dec 2006
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From: Columbia, South Carolina
Carb Mounting Issue
I recently bought a Holley Avenger for my '84 351W. I pulled most of the EGR stuff off it too. When I tried to mount the carb I couldn't because there was some module that goes into the manifold and it hung up most of the linkages on the carb so it wouldn't sit flat. I took it off and its siezed up. Do I need it there or can I just block it off?
Before with module to the left on:
After with the module to the left out:
Module Itself:
Thanks in advance for your help!
Before with module to the left on:
After with the module to the left out:
Module Itself:
Thanks in advance for your help!
Last edited by bobpearson90278; Oct 19, 2007 at 10:36 PM.
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
That was for the choke, just block it off, the Holley choke is self contained (if you choose to use it) You'll also need a new 1" spacer to replace the EGR spacer. I'd get a plastic or Phenolic type to insulate it from the manifold.
Cargo Master
Joined: May 2007
Posts: 2,071
Likes: 35
From: British Columbia
You can make your own cover from 1/4" aluminum or somesuch, or use the stock Ford little cast iron piece from a junkyard engine. I have an 85 car engine and it has the little stock piece, I think it starts with a D0AE casting number. If you like I can get the full casting number for you later.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
The 351W 4 barrel carb spacer plate without an EGR valve is the same as the one used on 1963/72 260/289/302's. However, this plate may not work on a 1980's 351W 4V intake manifold.
C3OZ-9A589-C .. Carburetor Spacer Plate.
There were no 351W 4V's offered from 1971 until the mid 1980's.
C3OZ-9A589-C .. Carburetor Spacer Plate.
There were no 351W 4V's offered from 1971 until the mid 1980's.
Cargo Master
Joined: May 2007
Posts: 2,071
Likes: 35
From: British Columbia
As Bill says, I don't think a regular carb spacer will cover the EGR port (that oval hole on the carb mounting surface). I seem to recall a stainless steel "gasket" was available to cover it.
Cargo Master
Joined: May 2007
Posts: 2,071
Likes: 35
From: British Columbia
I looked at my 1985 351W 2V and that little cast cover is marked D0AE-9A705-C. However, it looks smaller than the hole on your intake.
I don't know what a Holley "Avenger" carb is like, but that engine came with a Holley (4180?) stock, I think. Could you use a Holley 4150 or 4160 or 4180 to avoid the interference issues?
I don't know what a Holley "Avenger" carb is like, but that engine came with a Holley (4180?) stock, I think. Could you use a Holley 4150 or 4160 or 4180 to avoid the interference issues?
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
The Holley Avengers are basically the same as the other 4150/4160/4180 carbs, it'll still need a spacer on that intake to clear the linkages.
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Cargo Master
Joined: May 2007
Posts: 2,071
Likes: 35
From: British Columbia
OK, I see now I think. Is there only interference without the spacer? If so, it's not really a problem since a spacer should be used for PCV and also because presumably the engines run better with this additional spacing. It seems Fords almost always use a spacer, even before PCV and emissions stuff.
Could you cut off the EGR thing hanging off the spacer and braze or weld up the holes?
Or perhaps there's a marine plain cast iron spacer available. This would resist the hot corrosive gases coming from that oval EGR hole in the manifold itself. Then again, perhaps that hole in the manifold could be welded or brazed shut and then filed down to a smooth surface.
Could you cut off the EGR thing hanging off the spacer and braze or weld up the holes?
Or perhaps there's a marine plain cast iron spacer available. This would resist the hot corrosive gases coming from that oval EGR hole in the manifold itself. Then again, perhaps that hole in the manifold could be welded or brazed shut and then filed down to a smooth surface.
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Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
The cheap route is to just remove the EGR valve from the rear of the spacer and make a block off plate out of flat steel to plug the hole. Seen that done many times. Ford's intake carb pads are just too low to run a carb without at least a 1" spacer. I don't even think an Autolite 2100/4100 would clear the intake without one.
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