The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current Classic GM Trucks Classifieds > WTB Parts

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-22-2024, 01:01 AM   #1
67carry-all
Senior Member
 
Join Date: Jul 2008
Location: Central Coast, CA
Posts: 266
WTB - Vacuum fitting

Looking for a vacuum fitting with "actual" 3/8" threads (not NPT 3/8") and a small (1/8" or so) fitting for the vacuum hose. The local hardware store has one with what initially looks to be 3/8" threads but it tapers larger and won't fit in the threaded port on my intake. Anybody have such a fitting they'd be willing to part with? Thanks.
67carry-all is offline   Reply With Quote
Old 07-29-2024, 11:15 PM   #2
67carry-all
Senior Member
 
Join Date: Jul 2008
Location: Central Coast, CA
Posts: 266
Re: WTB - Vacuum fitting

So, to follow-up, I used a die to thread the hardware store fitting to a consistent 3/8" diameter. It now fits and so far is working well.
67carry-all is offline   Reply With Quote
Old 08-17-2024, 09:33 AM   #3
70STOVEBOLT
Senior Member
 
70STOVEBOLT's Avatar
 
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,367
Re: WTB - Vacuum fitting

Just curious, what intake do you have? I’ve not seen an intake with straight threads. Does it take an o-ring fitting?
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast"
200,000 Mile Club
Disc Brake Club

Owner installed options:
Front Sway Bar
Power Steering
Power Brakes
Cigar Lighter
Courtesy Lights
Deluxe Side Markers
Wiper Delay
Sliding Rear Window
Power Windows
Power Locks
Sniper EFI

2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear
70STOVEBOLT is offline   Reply With Quote
Old 08-17-2024, 02:56 PM   #4
67carry-all
Senior Member
 
Join Date: Jul 2008
Location: Central Coast, CA
Posts: 266
Re: WTB - Vacuum fitting

It's an older Offy on my 292. No o-rings, just apparently straight threads. It's the front one in this pic; I don't remember any issues with the port to the rear, that fitting may have come with the manifold when I got it.
Attached Images
 
67carry-all is offline   Reply With Quote
Old 08-17-2024, 02:57 PM   #5
70STOVEBOLT
Senior Member
 
70STOVEBOLT's Avatar
 
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,367
Re: WTB - Vacuum fitting

Interesting. Thanks for the info.
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast"
200,000 Mile Club
Disc Brake Club

Owner installed options:
Front Sway Bar
Power Steering
Power Brakes
Cigar Lighter
Courtesy Lights
Deluxe Side Markers
Wiper Delay
Sliding Rear Window
Power Windows
Power Locks
Sniper EFI

2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear
70STOVEBOLT is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:20 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com