Which intake vacuum fitting do I need?
Thread Starter
Race Director
Joined: May 2003
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From: Science Bitch! Mississauga, Ontario
Canadian Events Coordinator
Which intake vacuum fitting do I need?
1980 w/air.
Do I get part #452024 or #453064. Not sure if these are GM part numbers. I got the info from Corvette Central.
Thanks, Les
EDIT: Sorry I was looking for both a heater hose fitting and a vaccuum port fitting...
Do I get part #452024 or #453064. Not sure if these are GM part numbers. I got the info from Corvette Central.
Thanks, Les
EDIT: Sorry I was looking for both a heater hose fitting and a vaccuum port fitting...
Last edited by AGVI; Nov 7, 2004 at 07:16 PM.
Team Owner
Joined: Aug 1999
Posts: 30,995
Likes: 98
From: Ontario
Those numbers are for intake heater hose spouts. This is a 1980 intake. You need a vacuum fitting with three ports.
This one might work.
http://www.corvette-paragon.com/cata...5-BF330BB88F9B
This one might work.
http://www.corvette-paragon.com/cata...5-BF330BB88F9B
Last edited by Paul L; Nov 7, 2004 at 01:23 PM.
Thread Starter
Race Director
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From: Science Bitch! Mississauga, Ontario
Canadian Events Coordinator
Thanks for the advice Paul.
I need one with three ports, all on the side. I can't have one on top due to the Speed Demon carb. It won't clear the top port.
Thanks, Les
I need one with three ports, all on the side. I can't have one on top due to the Speed Demon carb. It won't clear the top port.
Thanks, Les
Thread Starter
Race Director
Joined: May 2003
Posts: 11,814
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From: Science Bitch! Mississauga, Ontario
Canadian Events Coordinator
I called them and they weren't much help.
What do the vacuum fittings control anyway?
If I don't really need them to drive the car I'll do without until next season.
I just need to get the car into storage.
Is #302179 the same size?
I'll use that one because of clearance issues.
What do the vacuum fittings control anyway?
If I don't really need them to drive the car I'll do without until next season.
I just need to get the car into storage.
Is #302179 the same size?
I'll use that one because of clearance issues.
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Thread Starter
Race Director
Joined: May 2003
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From: Science Bitch! Mississauga, Ontario
Canadian Events Coordinator
Originally Posted by paul67
If automatic, transmission modulator valve and all your headlamp vacuum circuits. I have never had A/C but there should be a console control function there as well.
Which one is on top?
This is the one I'm having problems with.
Race Director
Joined: Sep 2004
Posts: 11,874
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From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Originally Posted by AGVI
Thanks for the advice Paul.
I need one with three ports, all on the side. I can't have one on top due to the Speed Demon carb. It won't clear the top port.
Thanks, Les
I need one with three ports, all on the side. I can't have one on top due to the Speed Demon carb. It won't clear the top port.
Thanks, Les
Les, i'm right behind you on this so pls let me know what you are using, i'm still several weeks away from getting the engine ....thks bob
Melting Slicks
Joined: Jul 2004
Posts: 2,577
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From: Long Island New York
If you have three ports like the one in the photo, one is for the trans modular, one for the headlight vacuum, and one for the servo for the cruise control. That three input vacuum fitting in the photo is a discontinued item and is almost impossible to find at any of the resto houses. When it was available it sold for $70.00. I was unable to use it on my Edelbrock Performer manifold so I bought a two port side input fitting for a '75 and the put a plastic tee on the bottom port and connected two lines to that and the third line to the top port. It works perfectly and does not interfere with my air cleaner.
Le Mans Master
Joined: Mar 2004
Posts: 7,463
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From: Little Rock AR
Originally Posted by supervette77
If you have three ports like the one in the photo, one is for the trans modular, one for the headlight vacuum, and one for the servo for the cruise control. That three input vacuum fitting in the photo is a discontinued item and is almost impossible to find at any of the resto houses. When it was available it sold for $70.00. I was unable to use it on my Edelbrock Performer manifold so I bought a two port side input fitting for a '75 and the put a plastic tee on the bottom port and connected two lines to that and the third line to the top port. It works perfectly and does not interfere with my air cleaner.
-Mark.
Melting Slicks
Joined: Jul 2004
Posts: 2,577
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From: Long Island New York
Originally Posted by paul67
Les,
Check my link to the Paragon fitting again. Three ports on the side and $19.00.
Check my link to the Paragon fitting again. Three ports on the side and $19.00.
Thread Starter
Race Director
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From: Science Bitch! Mississauga, Ontario
Canadian Events Coordinator
Thanks Paul, I contacted Paragon.
Does anyone have any suggestions as to any other solutions like just getting a brass fitting with the same size thread and just 'teeing' it off to all of the vacuum lines?
Any pics would be appreciated.
Les
Does anyone have any suggestions as to any other solutions like just getting a brass fitting with the same size thread and just 'teeing' it off to all of the vacuum lines?
Any pics would be appreciated.
Les
