Source for vacuum fitting?
Thread Starter
Drifting
Joined: Jun 2004
Posts: 1,881
Likes: 9
From: staten island ny
Originally Posted by Tom454
According to my GM parts cat., group 3.278, number 355786 was used from 1976 to 1982.
3/8-18 with 4 ports: two 3/16" and two 1/4". Note 1: cap unused outlets as required with 343350 cap
Looks like a good number on GM Parts Direct... but holy poo... list is about $54 and net is about $33.
The only other vacuum fitting listed for 1979 is 1369465 which is a single port like Pauls.
473381 is also listed but it is a reducing bushing apparently... 5/8-18 to 3/8-18. Probably used with the 355786.
3/8-18 with 4 ports: two 3/16" and two 1/4". Note 1: cap unused outlets as required with 343350 cap
Looks like a good number on GM Parts Direct... but holy poo... list is about $54 and net is about $33.
The only other vacuum fitting listed for 1979 is 1369465 which is a single port like Pauls.
473381 is also listed but it is a reducing bushing apparently... 5/8-18 to 3/8-18. Probably used with the 355786.
Thread Starter
Drifting
Joined: Jun 2004
Posts: 1,881
Likes: 9
From: staten island ny
Originally Posted by Silvr77
If you don't care about originality and want function... the 3 port 77 manifold vacuum fitting should work just fine. Also, "Year One" sells a variety of vacuum fittings that will work for your application. I purchased a three port low profile (to clear Holly carb) metal vac fitting from them when I had my 77.
Eddie
Eddie
Checked year one, they go up to 75. I saw the low clearance port for Holly carbs and that would work but I would have to cut the tranny line that comes in from the top and have it come in from the side. Not a big deal but was looking for the right fitting.
Thread Starter
Drifting
Joined: Jun 2004
Posts: 1,881
Likes: 9
From: staten island ny
Originally Posted by brooksman9
Hve you looked at zips? I was looking through there catlog yesterday and noticed they had a large variety.
Thx anyway, ESU
Thread Starter
Drifting
Joined: Jun 2004
Posts: 1,881
Likes: 9
From: staten island ny
Originally Posted by scotty13
i think i have an old 2 port.... i could sell it for 20$
Definitley need a 3 port, I'd like to try and get the cruise working.
Thx, ESU
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