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66 273 CAP intake vacuum port plug

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66_cuda
New member
Post Number: 1
Registered: 4-2019
Thursday, April 04, 2019 - 11:24 am   Edit PostDelete PostView Post/Check IPMove Post (Moderator/Admin Only)   
Hi, I am usually on the Abody site but thought you guys might have some answers. I have installed a 1966/67 4bbl CAP intake #2536771 on my 66 Barracuda 273 and the big vacuum port behind the carb is open. I can not seem to find a plug to close off this port. Does anyone have the correct plug or know where I can find one or even know the correct size? I have tried the web and just about every hardware store or plumbing shop in my area with the same results (nothing). If anybody has an answer for me please reply, it's almost cruising time and I would like to button this up.
Thanks
Bob2536771 CAP Intake Manifold
Mojack
Senior Member
Post Number: 426
Registered: 2-2002


Friday, April 05, 2019 - 4:48 pm   Edit PostDelete PostView Post/Check IPMove Post (Moderator/Admin Only)   
Hello Bob, That's just an NPT pipe thread, any hardware store will have a plug in their plumbing dept. I can't remember what size it is, maybe 1/4 or 3/8 NPT.
Mojack
Senior Member
Post Number: 427
Registered: 2-2002


Friday, April 05, 2019 - 8:02 pm   Edit PostDelete PostView Post/Check IPMove Post (Moderator/Admin Only)   
Ok, I ran across your post on FABO, so it's not a pipe thread. If it's straight threads you can try different size bolts..??..
Beachbum84
New member
Post Number: 1
Registered: 6-2019
Wednesday, June 26, 2019 - 2:14 am   Edit PostDelete PostView Post/Check IPMove Post (Moderator/Admin Only)   
Any update on this?

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