GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Page 1 of 2 12 Last Post byLast Post by
Results 1 to 10 of 12
  1. #1

    Default Installation of long tube headers

    Just wondering if one could manage to install long tube headers, in a morning, in around 3 hours? I have my new headers right beside me, and i work from 1:00pm till 9:30 pm, so it would h ave to happen in the morning before work, then leave my truck at the muffler shop to have them finish my exhaust. Do you think it could happen in a morning? All i would do, is cut my old exhaust off far enough back, and then unbolt my old manifolds, then bolt my new headers up, not doing anything with my exhaust. driving open headers to the muffler shop.
    Last edited by ippielb; 05-18-2010 at 12:01 AM.
    2002 Chevrolet Silverado 1500 z71 1985 Chevrolet Silverado k10 2006 Chevrolet Silverado 2500hd 6.6l LLY Duramax
    6.5" BDS Suspension Lift Edelbrock Carb & Polished Intake Manifold & Valve Covers NAPC Race Transmission & NAPC Built Transfer Case
    EFI Live Comp Cam and Valvetrain Snow Performance Methanol Injection
    35" Toyo Open Country Mud Terrain on 18" Ion Alloy 179's Headman Long Tube Headers and True Dual Exhaust FASS 150gph Titanium Series Pump
    AirAid Cold Air Intake with K&N Dry Filter & AirAid PowerAid Throttle Body Spacer 2" Suspension Lift 33x12.50r15 Tires EFI Live & AFE Stage 2 Intake
    Pacesetter Long Tube Headers with Cats Gone True Dual Exhaust FlowPro 3.73 Gears Yukon Grizzly Locker with Mag-Hytec Cover & Traction Bars
    NGK Iridium Tips & MSD Ignition Plug Wires Baja Spare Tire Holder 33x13.5 Hankook rt03 18" XD Rims
    Innovate LC-1 Wideband o2 Sensor x2 HID's all around LED taillights and 3rd brake light
    BDS Dual Steering Stabilizers Pioneer Double-DIN Touchscreen Navigation with Two 10" Subs under rear seat
    Electric Fan Autometer Pressure, Boost, and Pyro Gauges
    4.56 Gears Airlift Air Bag Suspension

  2. #2
    Master Mechanic Big75's Avatar
    Join Date
    Nov 2009
    Seward, Nebraska, United States
    Blog Entries


    how far is the muffler shop?
    This post has been rated MA LSV, and is intended for mature audiences. Reader discretion is advised. :fighting0037:
    ghst-_-R3CON83 ----------BATTLEFIELD BAD COMPANY 2----------------------

    (This site won't let me add a real stat generator to my signature)

  3. #3
    Master Mechanic Dr_Zero's Avatar
    Join Date
    Mar 2006
    Sunny Florida


    Might ask the muffler shop if they have some header mufflers they will loan you till you get in. Some of the shops around here do that cause most of the time you just run them for the ride over to avoid the hassle from the police.

    Here is some cheap ones if they dont. Flowtech 50230FLT Purple Hornies 3-Hole Header Muffler: Automotive

    My trucks!

    1996 GMC Suburban SLT
    1997 GMC Yukon SLT

  4. #4


    Muffler shop is 35km away, 30 being highway driving, and then 5 in the city. Attempted at getting the manifold bolts off right now, but... haha they're pretty baked in there, soaking them in some nut buster to try and break the seal on them. Not putting my headers on today. Maybe tomorrow.

  5. #5


    shouldn't be too bad to do depending on how tight of fit it is. If you were using the existing exhaust or assembling new, then i'd say you might be tight on time, but if you get the bolts broke loose ahead of time shouldn't take more than an hour or so (supposing you have plenty of clearance and don't have to jack up the engine, etc)
    1986 Chevy G20 Tow Rig - 5.7 TBI conversion
    1978 Mustang II King Cobra Road Racer - Holley 650, MSD 6AL, 5 speed, 10 point Roll Cage, 9" posi, fuel cell, custom interior.

  6. #6


    I will try and get all the bolts broken, then the next day swap out the headers. Just to try and be safe on time.

  7. #7


    Busted one head off of a bolt with the ratchet on the drivers side, i was too strong i guess. haha, i settled down and got the air gun, and loosened the other bolts on the drivers side, removed them completely, cleaned them up, put them back on. Loosened one of the bolts on the passenger side, but then had to go to work. Damn... I guess i'm going to have to weld on a nut and try and get that bolt out of the block. Going to soak it for a while more with WD-40. Anyways, i bought VHT very high temperature flameproof header paint. Silica Ceramic Coating. Going to paint my headers with this. Just curious if anyone had tricks to painting headers.

  8. #8
    Sr. Engineer
    Join Date
    Jun 2009
    San Diego, CA


    It is possible to get your headers done in 3 hours but you are pushing it. Your trip to the muffler shop will be incredibly loud and will run like crap due to the O2 sensors.
    Black Bear Performance- Custom Tuning Solutions

    Authorized EFILive and MAGNACHARGER seller

  9. #9


    As long as my truck gets there, but i need to finish painting them ,they still aren't on yet. The can i got for primer heat paint was screwed, so i just got another one. I hope everything turns out well.

  10. #10


    Most headers nowdays come with the O2 sensor bungs already installed, so that shouldn't be an issue.

    as for the bolt, it's most likely rusted in the manifold and not the block. once you get the manifold popped loose, you should be able to just get some vice grips on it and get it out that way. You may need to use some heat on the manifold to get it off the rusted bolt. That will probably be the most time consuming of the process, so just be prepared for it (ie start on that side first, in case you can't get the manifold off.

    I just pulled the manifolds off of my 86, and that was the issue I had. luckily I didn't break any.

Page 1 of 2 12 Last Post byLast Post by

Similar Threads

  1. Shorty Headers vs Long Tube Headers
    By rackchaser71 in forum Performance & Fuel
    Replies: 5
    Last: 06-18-2011, 12:13 AM
  2. Long Tube Headers
    By Metaluzc in forum Performance & Fuel
    Replies: 11
    Last: 06-18-2010, 12:33 PM
  3. Which long tube headers?
    By chevytruckman in forum Performance & Fuel
    Replies: 2
    Last: 11-23-2009, 10:38 AM
  4. Long Tube Headers
    By willbradfan in forum Performance & Fuel
    Replies: 17
    Last: 07-17-2009, 02:52 PM
  5. Headers, long tube or shorties?
    By mjalstad in forum Performance & Fuel
    Replies: 12
    Last: 03-11-2009, 03:01 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts