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Riviera, Buick's with a nailhead exhaust???

Discussion in 'The Hokey Ass Message Board' started by PRDDETROIT, Apr 29, 2013.

  1. Hello everyone,
    Anyone with nailheads (especially Riv's) What exhaust are you running?
    2 inch or 2-1/4, What mufflers and how do they sound?
    I'm lowering my Riv and the stock barrel muffler will hang to low.
    I was going to change the pipes to hug the frame but, I want a really good tone on this car.
    Tell me what you got and pic's if you have them.

    Thanks for any help,

  2. 'Mo
    Joined: Sep 26, 2007
    Posts: 7,431


    I ran 2 1/4" pipe with Turbo mufflers. It was deep, rich, and mellow, with plenty of ground clearance.
  3. Thanks Mo. I appreciate it.
  4. I'll be looking for a good shop in southeast Michigan if anyone knows of a good one.

  5. Ryan
    Joined: Jan 2, 1995
    Posts: 20,511

    Staff Member

    I'm running 2" exhaust with Porter mufflers... Sounds exactly as it should.
  6. Da Tinman
    Joined: Dec 29, 2005
    Posts: 4,227

    Da Tinman

    We put regular tailpipes and eliminated the crossflow on Cool57's Riv with 18" cheapie glasspacks under the rear framerails. Sounds awesome and is not the least bit obnoxious.
  7. Thanks Ryan. I know you dropped your's 3 inches. Any issues or something you'ed do different? I'm ordering my springs today from coil spring specialties and I was thinking of having them made 10 percent stiffer. Your thoughts since your already low?
  8. Yea, The stock muffers to quite but also is going to sit way to low once I drop it 3 inches. I just want to make sure a get a good tone and not an overly raspy tone

  9. oldskooljc
    Joined: Aug 4, 2009
    Posts: 812

    from Fresno CA.

    My vote is for SMITTY'S they sound good on everything!
  10. There is a clip of a Magna Flow muffler on a `64 Riv over on the ROA site , sounds pretty good. I am running a stock set up without resonators .In time, as money permits I will change out the muffler to the Magnaflow. No clearance issues with my bagged `64 so far.
  11. Mine is also stock with all the factory bends to quiet it down. No resonators on mine either. I'll check it out.

  12. Do you happen to have a link to that clip?

  13. lrlforfun
    Joined: Nov 10, 2005
    Posts: 23


    OK Prd: I like the stock system, the two resonators and that big old muff behind the gas tank. These cars run fantastic when they have (A) good even compression and (B)they're quiet.

    I have had many 63, 64 and 65 Rivs through the years with good stock exhaust, with worn out stock exhaust and aftermarket. Just me now.....after I get in one that fits the A and B it's really nice driving. Not only is it quiet, I can't feel the shift points (not supposed to anyway) on the 63 Dynaflow and barely feel them on the Turbo-400's (64 and 65).

    There are a few other things besides that which put a smile on my face......never mind. Mitch
    Last edited: Apr 30, 2013
  14. maddhatter1
    Joined: Feb 4, 2008
    Posts: 61


    I got 2 in off manifold into 2 1/2 then into some redhots then kicks out in front of rear tires. Sounds great. Dont get sucked into the nostalgia of old name glasspacks. I listened to tons of soundbytes and mine sounds great.
  15. bb1970
    Joined: Jan 17, 2009
    Posts: 246


    I had glass packs that dumped out the side in front of the rear tires. I hated it. I had tail pipes ran out the ass end and still wasn't thrilled. After I dropped the car 3" the mufflers drug the ground from time to time. So I had a Magnaflow cross flow installed behind the differential in the stock location. I like ALOT better. No drone on the highway. Still sounds good when you step on it.
    Last edited: Jul 16, 2013
  16. That's Right!! Except they are SMITHY'S :D
    oddrod46 likes this.
  17. rlowrod
    Joined: May 27, 2010
    Posts: 38

    from Corona Ca

    2 1/4 inch with flowmasters, sounds awesome, n my car lays frame.
  18. slacker1965
    Joined: Aug 17, 2007
    Posts: 120


    anybody got a part# for that magnaflow?, what did you do for hangers? are you still using the stock type system with all the flanges?.....they do make it easy to work on things since you can just unbolt various sections
  19. My old man took it to a shop in Westland Mi. All custom bent and hung tight to the frame with magnaflow glasspacks med length up front. Slash cut out the back. Nice job. 350 minis the mufflers I bought from summit. I'll have pics tomorrow

    Posted using the Full Custom H.A.M.B. App!
  20. ImageUploadedByH.A.M.B.1373992255.617284.jpg

    Posted using the Full Custom H.A.M.B. App!
  21. Snake hit
    Joined: Jun 25, 2012
    Posts: 102

    Snake hit
    from calif. LA

    My exhaust is ported manifolds on the collector side 2 1/4'' out to 18'' glass packs turned opposite (perforated louvers) pointing toward outlet, into a camero style 2 in 2 out Flowmaster muffler angled behind the diff. Sounds real mellow but however not sure now with the new carb, intake & exhaust maifolds and cam that will be installed.
  22. bb1970
    Joined: Jan 17, 2009
    Posts: 246


    Magnaflow 14385. Bought on ebay for $75. Installed at local exhaust shop.
  23. mart3406
    Joined: May 31, 2009
    Posts: 3,055

    from Canada

    In in late 70's I had '69 Buick Wildcat,
    with a 430 V8 that I replaced the stock
    single exhaust system on, with a
    homemade 2 1/4 inch dual exhaust
    using a pair of 2 1/4 in & out Thrush
    "Hush Thrush" turbo mufflers (does
    anybody else remember those??). The
    Thrush turbo mufflers were compact
    and had a lot less back pressure than
    the stock Buick exhaust system and
    while the system wasn't excessively
    loud, I wasn't totally happy with the
    kind of flat and slightly raspy tone the
    car now had. (For a big, "large car"
    Buick 'cruiser', I wanted more of a
    mellow and "just slightly subdued
    and stealthy, iron fist in a velvet glove
    sort of exhaust note, rather than a
    raspy "street rat" muscle car sound!)
    To improve the "sound quality" and
    get it more to my liking, I replaced a
    section of the tailpipes immediately
    aft of the mufflers and added a pair
    of 30-inch-long straight-through
    'glasspacks' to act as resonators. After
    that, I thought the sound was pure
    "perfection"! If I was working on
    something similar today, I'd probably
    do about the same thing, except that
    I'd also probably add a crossover pipe
    ahead of the mufflers to decrease the
    back pressure a little bit more and to
    further "mellow" the exhaust note.

    Last edited: Jul 16, 2013

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