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 > The 1947 - 1959 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-16-2017, 09:45 PM   #1
Flysocal
Registered User
 
Join Date: Jun 2015
Location: Glendale
Posts: 414
Exhaust help

So I've got hooker cast headers and welded the adapter pipe. There will be a crossover and dual mufflers. Should I weld everything up from header all the way to the muffler? Or run clamps? My thought is to weld everything so it's air tight. So I would end up with headers, one huge section (adaptor pipe, crossover, etc.) clamp to mufflers, clamp from mufflers to side dump. I will post pictures when Photobucket is back up and running
Flysocal is offline   Reply With Quote
Old 03-16-2017, 10:14 PM   #2
focusedontheprize
Registered User
 
focusedontheprize's Avatar
 
Join Date: Feb 2012
Location: CA
Posts: 846
Re: Exhaust help

Quote:
Originally Posted by Flysocal View Post
So I've got hooker cast headers and welded the adapter pipe. There will be a crossover and dual mufflers. Should I weld everything up from header all the way to the muffler? Or run clamps? My thought is to weld everything so it's air tight. So I would end up with headers, one huge section (adaptor pipe, crossover, etc.) clamp to mufflers, clamp from mufflers to side dump. I will post pictures when Photobucket is back up and running
The situation with a fully welded system is being able to drop it to work the items above it. Would that be an issue for you for your one huge main section?
focusedontheprize is offline   Reply With Quote
Old 03-16-2017, 10:33 PM   #3
Flysocal
Registered User
 
Join Date: Jun 2015
Location: Glendale
Posts: 414
Re: Exhaust help

No, in fact it it's all below driveshaft and crossmembers so it would drop right out. Will post pictures when photobucket works!
Flysocal is offline   Reply With Quote
Old 03-16-2017, 11:06 PM   #4
focusedontheprize
Registered User
 
focusedontheprize's Avatar
 
Join Date: Feb 2012
Location: CA
Posts: 846
Re: Exhaust help

Quote:
Originally Posted by Flysocal View Post
No, in fact it it's all below driveshaft and crossmembers so it would drop right out. Will post pictures when photobucket works!
Haha good ol' photobucket.

I am interested to hear what others have to say, however when I build mine I have the intentions of doing the same (welding to the mufflers). We put a TTI system in the Challenger and my old man is putting one in his 'Cuda. They are fully welded up to the mufflers and they are known for their quality so I would suspect it may be the best way to go.
focusedontheprize is offline   Reply With Quote
Old 03-16-2017, 11:29 PM   #5
oldman3
Senior Member
 
oldman3's Avatar
 
Join Date: Mar 2011
Location: West Plains, Missouri
Posts: 7,559
Re: Exhaust help

Nothing wrong with welding them solid, if you can drop them down when needed.
I welded flanges before and after my mufflers, and also at the H pipe, that way I could have mine hot coated, and never have to worry about replacing. Here's a few pics...Jim
Attached Images
    
oldman3 is offline   Reply With Quote
Old 03-17-2017, 12:59 PM   #6
_Ogre
Registered User
 
_Ogre's Avatar
 
Join Date: Jan 2012
Location: Motown
Posts: 7,680
Re: Exhaust help

if you use dumps before the axle the whole enchilada can be welded
if you go over the axle there should be a flange before the axle

currently mine is fully welded, this summer we're going to see if i can get over the axle
__________________
cool, an ogre smiley Ogre's 58 Truk build

how to put your truck year and build thread into your signature
shop air compressor timer
_Ogre is offline   Reply With Quote
Old 03-17-2017, 03:03 PM   #7
Flysocal
Registered User
 
Join Date: Jun 2015
Location: Glendale
Posts: 414
Re: Exhaust help

Great idea on the flanges so you can ship to jethot! Do you need gaskets at the flanges? I would love to have the whole thing ceramic coated. I plan to have the headers coated but was thinking of VHT paint for the rest. At 150 for the headers I bet it would be close to 1000 to have the whole thing coated. Yikes! I have to work for he next 3 days so I will have time to think about it. As of now I'm thinking welding everything from intermediate (adaptor) pipe all the way to the muffler welded as one unit. Bolt to headers, clamp to mufflers, then clamp from mufflers to side dump. I don't really want to weld pipe to mufflers they look great painted as is unless the consensus is welding is the best option. Here is a pic of the system so far. Going to trim quite a bit off this so the mufflers fit where I want them. Running heavy duty summit swivel hangers.

Flysocal is offline   Reply With Quote
Old 03-17-2017, 07:53 PM   #8
oldman3
Senior Member
 
oldman3's Avatar
 
Join Date: Mar 2011
Location: West Plains, Missouri
Posts: 7,559
Re: Exhaust help

Quote:
Originally Posted by Flysocal View Post
Great idea on the flanges so you can ship to jethot! Do you need gaskets at the flanges? I would love to have the whole thing ceramic coated. I plan to have the headers coated but was thinking of VHT paint for the rest. At 150 for the headers I bet it would be close to 1000 to have the whole thing coated.
Yes, gaskets for the flanges. Nothing wrong with the VHT paint, should work good. It's been 15 yrs since I did mine, so no ideal on cost to ceramic coat...Jim
oldman3 is offline   Reply With Quote
Old 03-18-2017, 12:14 PM   #9
_Ogre
Registered User
 
_Ogre's Avatar
 
Join Date: Jan 2012
Location: Motown
Posts: 7,680
Re: Exhaust help

as flysocial's pic shows; our trucks exhaust can go under the frame and xmembers and still be above the scrub line
__________________
cool, an ogre smiley Ogre's 58 Truk build

how to put your truck year and build thread into your signature
shop air compressor timer
_Ogre is offline   Reply With Quote
Old 03-18-2017, 12:50 PM   #10
Speedbumpauto
Registered User
 
Speedbumpauto's Avatar
 
Join Date: Aug 2011
Location: Tucson, AZ
Posts: 917
Re: Exhaust help

There are probably local high temp coating places cheaper and closer to you than Jet Hot. I used a place in Phoenix that is substantially cheaper and does a better job IMO. They did the one piece header to exhaust section and all the other pieces.
Attached Images
  
Speedbumpauto is offline   Reply With Quote
Old 03-18-2017, 01:53 PM   #11
Flysocal
Registered User
 
Join Date: Jun 2015
Location: Glendale
Posts: 414
Re: Exhaust help

VERY NICE exhaust systems!
Flysocal is offline   Reply With Quote
Old 05-30-2017, 11:39 PM   #12
Flysocal
Registered User
 
Join Date: Jun 2015
Location: Glendale
Posts: 414
Re: Exhaust help

Just a quick thanks to you all for the help. This is my first non-motorcycle exhaust. Fully ceramic coated. With the above good advise I'm happy with the outcome.

Flysocal is offline   Reply With Quote
Old 05-31-2017, 12:07 AM   #13
joedoh
Senior Member
 
joedoh's Avatar
 
Join Date: May 2007
Location: Doodah Kansas
Posts: 7,774
Re: Exhaust help

gorg-emous
__________________
the mass of men live lives of quiet desperation


if there is a problem, I can have it.

new project WAYNE http://67-72chevytrucks.com/vboard/s...d.php?t=844393
joedoh is offline   Reply With Quote
Old 05-31-2017, 12:45 AM   #14
vintovka
Registered User
 
vintovka's Avatar
 
Join Date: Aug 2016
Location: Hunkered Down
Posts: 1,895
Cool Re: Exhaust help

wow!!
vintovka is offline   Reply With Quote
Old 05-31-2017, 09:57 AM   #15
dsraven
Registered User
 
Join Date: Nov 2010
Location: calgary alberta
Posts: 8,333
Re: Exhaust help

verrry nice flysocal. I lik the forethought time spent to consider work in the future. like the drop out centre on the trans mount for instance. the attention to detail like all the painted exhaust, plated hardware etc. great job. very clean. that is how I see my project looking like when or if I ever get time to complete it.
dsraven is offline   Reply With Quote
Old 06-01-2017, 09:50 AM   #16
b-mac
Registered User
 
b-mac's Avatar
 
Join Date: Mar 2014
Location: Wichita
Posts: 519
Re: Exhaust help

Quote:
Originally Posted by Speedbumpauto View Post
There are probably local high temp coating places cheaper and closer to you than Jet Hot. I used a place in Phoenix that is substantially cheaper and does a better job IMO. They did the one piece header to exhaust section and all the other pieces.
Speedbump, I'm confused by your exhaust system. Is this designed so that a portion of your exhaust flows through the mufflers and a portion flow through the 'straight-pipes'? I don't see dumps, but maybe I'm overlooking something...
b-mac is offline   Reply With Quote
Old 06-01-2017, 12:02 PM   #17
_Ogre
Registered User
 
_Ogre's Avatar
 
Join Date: Jan 2012
Location: Motown
Posts: 7,680
Re: Exhaust help

speedbump's dump valves are installed in the bottom pic

our shop does only 304 ss exhaust systems
we had a rod shop move in next door, they had us make an exhaust for one of their cars
all nicely tig welded 304 ss with polished mufflers and welds, a show piece exhaust system
they sent it out to be jet coated... when we asked why? they replied 'because we always do'
__________________
cool, an ogre smiley Ogre's 58 Truk build

how to put your truck year and build thread into your signature
shop air compressor timer
_Ogre is offline   Reply With Quote
Old 06-01-2017, 06:53 PM   #18
solidaxel
Registered User
 
solidaxel's Avatar
 
Join Date: Dec 2002
Location: Cactus Patch So. Az
Posts: 4,749
Re: Exhaust help

Quote:
Originally Posted by Speedbumpauto View Post
There are probably local high temp coating places cheaper and closer to you than Jet Hot. I used a place in Phoenix that is substantially cheaper and does a better job IMO. They did the one piece header to exhaust section and all the other pieces.
Was it Affordable Powder Coating?
They have done a lot of exhaust manifolds for me
__________________
53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD)
53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25
55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73
62 Solidaxle Corvette Roman Red (327
340hp 4spd 3:36) C4 & C5 suspension tube chassis
LS 3 4L70E
65 Corvette Coupe 327 350hp 4spd 4:11
78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42
2000 S-Type 3.0 (wife cruiser)
2003 GMC SCSB 5.3 4L60E 3:42
solidaxel 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 09:58 AM.


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