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exhaust manifold studs and springs, can't find

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    exhaust manifold studs and springs, can't find

    Hi
    I am infrequent member here, I love my stock white cargo van got it new in 95 and have over 280k miles and runs great.
    I developed a small noise when I drive around town or give the engine a little work to do going up hill.
    I had the manifolds on the engine replaced over 100k back but now the exhaust flange on the driver side is making a tiny bit of annoying noise.
    When the manifold was installed, not by me, they used studs and springs, I'd like to do the same, but I cannot find a source,
    I saw what I needed at summit racing, and there are lots of lists that include the 5.7 engine but no mention of a g20 van.
    Of course I've been under the van to see if they where loose, the studs, but I found I could back them out entirely with the nut frozen on the stud, so I guess I am pretty lucky about that.
    Any comments on with or without springs is appreciated, thanks Leonard

    I want to correct this post and clarify that what I am trying to find is exhaust flange studs and springs.
    Last edited by Leonard; 09-21-2021, 10:39 AM.

    #2
    Try this

    I'm not sure about the springs but one option for the stud is McMaster Carr part# 94358A340. It's a 3" long stud with 1" of 3/8-24 threads, 5/8" of 3/8-16 threads and a hex and has a hex drive on the end. They're about 6 bucks a piece.
    https://www.mcmaster.com/94358A340/

    108VanGuy...
    1969 Chevy Panel, 250 CID, 3 ring 4 Spd. with OD, 2.73 "WedgieVan" Daily Driver
    1967 Chevy Panel, 230 CID, 3 Spd. 3.36 "UtiliVan Owned since 76
    1964 GMC Panel, 194 CID, 3 Spd. "CrunchoVan"
    1965 Chevy Panel 350 CID, 3 Spd. "RustoRoof" Runs but wiring bad
    1969 Chevy 108 Display 307 CID THM 350 Power Brakes 3.73 Posi
    1965 Chevy Panel, V8, 3 Spd. "Gold Hills Van"
    1965 CamperVan, V8, 3 Spd.
    1969 G20 Shell

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      #3
      thanks

      I had to give up on the spring idea. I am going to take from your post the hardness and check with what I have found elsewhere, well, rock auto, fel pro has some studs and nuts that would fit
      Seems to me I want the best quality for just about the hottest part of the manifold, I don't want to come back and find they have cracked or froze.
      I have a bad wipers, I think its the circuit board, I know how to fix that kind of stuff , but to reach it is going to be hard.
      Also my starter is original and never been changed, I day dream about buying one to have it on hand,
      Last edited by Leonard; 09-22-2021, 02:20 PM.

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