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 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-07-2020, 04:27 PM   #1
54blackhornet
Registered User
 
54blackhornet's Avatar
 
Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,235
Stock 71 V8 Y Pipe Help ?

Trying to fab up a exhaust to replace the original single exhaust system. Can anyone confirm the Outside diameter of the front Y pipe ? I can’t believe how difficult it is to replace such a basic system. I was quoted $800.00 by my only local shop...crazy
__________________
71 C-20
07 Magnum RT AWD
54blackhornet is offline   Reply With Quote
Old 03-09-2020, 09:30 PM   #2
dmjlambert
Senior Member
 
dmjlambert's Avatar
 
Join Date: Apr 2016
Location: Cypress, TX
Posts: 3,513
Re: Stock 71 V8 Y Pipe Help ?

I would also like to know about Y pipe options. Is a pre-made kit not available? I would like to get rid of my dual exhaust system and go with one muffler like it originally had.
dmjlambert is offline   Reply With Quote
Old 03-09-2020, 10:18 PM   #3
71 super
Registered User
 
71 super's Avatar
 
Join Date: Sep 2005
Location: Canton North carolina
Posts: 3,074
Re: Stock 71 V8 Y Pipe Help ?

Try walker brand, on my 71 small truck, I was able to buy the stock type y pipe through advance auto, and it was a much better price than you were quoted
__________________
67 blue step side- bb
68 gold and white swb cst anniversary
68 custom swb hot rod Ls swap
69 swb cst 6 cylinder/ overdrive
69 black/black cst bb swb
70 orange and white cst Canada built truck swb bb
71 black and white super swb bb
71 red and white super swb
72 green and white super swb 4x4
62 nova wagon 400 series Ls swapped
68 Camaro 327/4 speed- 1 owner, original paint
66 Volkswagen bettle
69 auto stick Volkswagen Beetle
71 super is offline   Reply With Quote
Old 03-10-2020, 08:19 AM   #4
Joesjunk
Senior Member
 
Joesjunk's Avatar
 
Join Date: May 2001
Location: Independence MO.
Posts: 7,689
Re: Stock 71 V8 Y Pipe Help ?

I believe the walker Y pipe has been discontinued, but I have a few at home And i can get you the part number to search.
__________________
72 3/4t Custom Deluxe 402/auto 66k Original paint
71 3/4t 4x4 Custom Deluxe 10k original miles Original paint
71 3/4t Cheyenne 402 70k original paint
72 3/4t 4x4 Custom deluxe
72 3/4t 4x4 Custom deluxe 91k original paint
72 Cheyenne/30 Dually
69 Camaro SS396 4-speed
13 GMC 2500HD Duramax I bought new
05 Jeep Wrangler "Willys Edition" 12k miles (I bought new)
85 3/4 ton 4x4 Scottsdale 33k miles original paint
86 1 ton 4x4 SRW Silverado 454 restored
80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint
95 GMC 1 ton dually 4x4 my dad bought new
95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles
2002 2500HD 4x4 regular cab 6.0L 67k miles
2002 2500HD 4x4 regular cab 8.1L 28k miles
2003 GMC 2500HD 4x4 regular cab Diesel 93k miles

67-72 Parts for sale
Joesjunk is offline   Reply With Quote
Old 03-10-2020, 11:52 AM   #5
54blackhornet
Registered User
 
54blackhornet's Avatar
 
Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,235
Re: Stock 71 V8 Y Pipe Help ?

I have been trying to locate the Y pipe for a few weeks with no luck at all.
__________________
71 C-20
07 Magnum RT AWD
54blackhornet is offline   Reply With Quote
Old 03-10-2020, 01:12 PM   #6
Joesjunk
Senior Member
 
Joesjunk's Avatar
 
Join Date: May 2001
Location: Independence MO.
Posts: 7,689
Re: Stock 71 V8 Y Pipe Help ?

Quote:
Originally Posted by 54blackhornet View Post
I have been trying to locate the Y pipe for a few weeks with no luck at all.
I guess you have the part number then??

I might have an extra one I could sell? I’ll have to look
__________________
72 3/4t Custom Deluxe 402/auto 66k Original paint
71 3/4t 4x4 Custom Deluxe 10k original miles Original paint
71 3/4t Cheyenne 402 70k original paint
72 3/4t 4x4 Custom deluxe
72 3/4t 4x4 Custom deluxe 91k original paint
72 Cheyenne/30 Dually
69 Camaro SS396 4-speed
13 GMC 2500HD Duramax I bought new
05 Jeep Wrangler "Willys Edition" 12k miles (I bought new)
85 3/4 ton 4x4 Scottsdale 33k miles original paint
86 1 ton 4x4 SRW Silverado 454 restored
80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint
95 GMC 1 ton dually 4x4 my dad bought new
95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles
2002 2500HD 4x4 regular cab 6.0L 67k miles
2002 2500HD 4x4 regular cab 8.1L 28k miles
2003 GMC 2500HD 4x4 regular cab Diesel 93k miles

67-72 Parts for sale
Joesjunk is offline   Reply With Quote
Old 03-10-2020, 01:51 PM   #7
54blackhornet
Registered User
 
54blackhornet's Avatar
 
Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,235
Re: Stock 71 V8 Y Pipe Help ?

Joe I don’t have a number just looking on the web?
__________________
71 C-20
07 Magnum RT AWD
54blackhornet is offline   Reply With Quote
Old 03-10-2020, 10:35 PM   #8
Joesjunk
Senior Member
 
Joesjunk's Avatar
 
Join Date: May 2001
Location: Independence MO.
Posts: 7,689
Re: Stock 71 V8 Y Pipe Help ?

Quote:
Originally Posted by 54blackhornet View Post
Joe I don’t have a number just looking on the web?
Here’s the walker part number 40346

I have bought Y pipes for my 4x4 71-72 trucks from Waldron exhaust. They make complete exhaust systems, or you can just order the y pipe. They have nice stuff.
http://www.waldronexhaust.com/
__________________
72 3/4t Custom Deluxe 402/auto 66k Original paint
71 3/4t 4x4 Custom Deluxe 10k original miles Original paint
71 3/4t Cheyenne 402 70k original paint
72 3/4t 4x4 Custom deluxe
72 3/4t 4x4 Custom deluxe 91k original paint
72 Cheyenne/30 Dually
69 Camaro SS396 4-speed
13 GMC 2500HD Duramax I bought new
05 Jeep Wrangler "Willys Edition" 12k miles (I bought new)
85 3/4 ton 4x4 Scottsdale 33k miles original paint
86 1 ton 4x4 SRW Silverado 454 restored
80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint
95 GMC 1 ton dually 4x4 my dad bought new
95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles
2002 2500HD 4x4 regular cab 6.0L 67k miles
2002 2500HD 4x4 regular cab 8.1L 28k miles
2003 GMC 2500HD 4x4 regular cab Diesel 93k miles

67-72 Parts for sale
Joesjunk is offline   Reply With Quote
Old 03-11-2020, 04:48 PM   #9
54blackhornet
Registered User
 
54blackhornet's Avatar
 
Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,235
Re: Stock 71 V8 Y Pipe Help ?

Thanks Joe $415.00 for a complete single system...appreciate your help..Jack
__________________
71 C-20
07 Magnum RT AWD
54blackhornet is offline   Reply With Quote
Old 03-11-2020, 06:53 PM   #10
dmjlambert
Senior Member
 
dmjlambert's Avatar
 
Join Date: Apr 2016
Location: Cypress, TX
Posts: 3,513
Re: Stock 71 V8 Y Pipe Help ?

Please let us know if you get this and how does it work out for you. If you could give us pictures and how-to info right here it would be much appreciated. I am wondering if the system fits without a heat riser valve, or requires one, or is optional to fit either way. My truck used to have one, but it was removed and disposed of by the guy who installed my dual exhaust glass pack system.
dmjlambert is offline   Reply With Quote
Old 03-11-2020, 09:05 PM   #11
DA71Grande
Senior Member
 
DA71Grande's Avatar
 
Join Date: Aug 2018
Location: Liberty Twp, Ohio
Posts: 333
Re: Stock 71 V8 Y Pipe Help ?

Looks like rock auto may have one of the Walker 40346

https://www.rockauto.com/en/parts/wa...346,pipe,10038
__________________
Doug

71 Sierra Grande C25
16 Sierra 2500HD All Terrain
23 Chevy Tahoe Z71

https://paypal.me/digdug7131?locale.x=en_US
DA71Grande is offline   Reply With Quote
Old 03-11-2020, 10:31 PM   #12
Joesjunk
Senior Member
 
Joesjunk's Avatar
 
Join Date: May 2001
Location: Independence MO.
Posts: 7,689
Re: Stock 71 V8 Y Pipe Help ?

Quote:
Originally Posted by 54blackhornet View Post
Thanks Joe $415.00 for a complete single system...appreciate your help..Jack
Good deal, I haven’t bought the complete system before, but I might on my next K/20 im working on. All my trucks that came with single exhaust are getting correct exhaust systems
__________________
72 3/4t Custom Deluxe 402/auto 66k Original paint
71 3/4t 4x4 Custom Deluxe 10k original miles Original paint
71 3/4t Cheyenne 402 70k original paint
72 3/4t 4x4 Custom deluxe
72 3/4t 4x4 Custom deluxe 91k original paint
72 Cheyenne/30 Dually
69 Camaro SS396 4-speed
13 GMC 2500HD Duramax I bought new
05 Jeep Wrangler "Willys Edition" 12k miles (I bought new)
85 3/4 ton 4x4 Scottsdale 33k miles original paint
86 1 ton 4x4 SRW Silverado 454 restored
80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint
95 GMC 1 ton dually 4x4 my dad bought new
95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles
2002 2500HD 4x4 regular cab 6.0L 67k miles
2002 2500HD 4x4 regular cab 8.1L 28k miles
2003 GMC 2500HD 4x4 regular cab Diesel 93k miles

67-72 Parts for sale
Joesjunk is offline   Reply With Quote
Old 03-31-2020, 10:41 PM   #13
LostMy65
But Found Her 25yrs Later!
 
LostMy65's Avatar
 
Join Date: Oct 2010
Location: Oregon City, Oregon
Posts: 10,457
Re: Stock 71 V8 Y Pipe Help ?

Any updates?
__________________
I lost my 65 - Found it 25 years later:
http://67-72chevytrucks.com/vboard/s...d.php?t=426650

66 C20 Service Truck:
http://67-72chevytrucks.com/vboard/s...d.php?t=428035
LostMy65 is offline   Reply With Quote
Old 03-31-2020, 10:55 PM   #14
LostMy65
But Found Her 25yrs Later!
 
LostMy65's Avatar
 
Join Date: Oct 2010
Location: Oregon City, Oregon
Posts: 10,457
Re: Stock 71 V8 Y Pipe Help ?

What about this one? : https://www.summitracing.com/parts/wlk-40295
__________________
I lost my 65 - Found it 25 years later:
http://67-72chevytrucks.com/vboard/s...d.php?t=426650

66 C20 Service Truck:
http://67-72chevytrucks.com/vboard/s...d.php?t=428035
LostMy65 is offline   Reply With Quote
Old 03-31-2020, 11:41 PM   #15
LostMy65
But Found Her 25yrs Later!
 
LostMy65's Avatar
 
Join Date: Oct 2010
Location: Oregon City, Oregon
Posts: 10,457
Re: Stock 71 V8 Y Pipe Help ?

Is there a difference in the exhaust manifolds from 67-72?
__________________
I lost my 65 - Found it 25 years later:
http://67-72chevytrucks.com/vboard/s...d.php?t=426650

66 C20 Service Truck:
http://67-72chevytrucks.com/vboard/s...d.php?t=428035
LostMy65 is offline   Reply With Quote
Old 04-01-2020, 04:25 PM   #16
54blackhornet
Registered User
 
54blackhornet's Avatar
 
Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,235
Re: Stock 71 V8 Y Pipe Help ?

Guys I looked my original Y pipe over good and determined to reuse it. When the weather improves and this event passes I will have a local shop duplicate the rest....wishing everyone a healthy future
Jack
__________________
71 C-20
07 Magnum RT AWD
54blackhornet is offline   Reply With Quote
Old 04-01-2020, 08:55 PM   #17
dmjlambert
Senior Member
 
dmjlambert's Avatar
 
Join Date: Apr 2016
Location: Cypress, TX
Posts: 3,513
Re: Stock 71 V8 Y Pipe Help ?

If you're able I would love to see pictures as you go, and see how the pipe is routed. I am interested in going from dual exhaust to regular stock type setup with a single muffler. You'd probably have the first documented picture/how-to post anywhere of a single exhaust pipe on a V-8 on one of these trucks.
dmjlambert is offline   Reply With Quote
Old 04-02-2020, 01:36 PM   #18
54blackhornet
Registered User
 
54blackhornet's Avatar
 
Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,235
Re: Stock 71 V8 Y Pipe Help ?

I will post photos while the truck is at the exhaust shop. My original Y pipe was actually in pretty good condition so I just decided to keep it single.
__________________
71 C-20
07 Magnum RT AWD
54blackhornet is offline   Reply With Quote
Old 07-07-2020, 02:32 PM   #19
Bearhawg
Registered User
 
Bearhawg's Avatar
 
Join Date: Feb 2018
Location: Snellville GA
Posts: 104
Re: Stock 71 V8 Y Pipe Help ?

I would be very interested in pictures as well. My y-pipe exits the driver side. The passenger side down pipe routes around the starter and crosses over to meet the driver side down pipe. most of the pictures I've seen the driver side down pipe crosses over to meet the passenger side down pipe. I have a 350cid/TH350 if that makes a difference.
Bearhawg is offline   Reply With Quote
Old 07-07-2020, 03:32 PM   #20
54blackhornet
Registered User
 
54blackhornet's Avatar
 
Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,235
Re: Stock 71 V8 Y Pipe Help ?

Mine crosses over to the drivers side. I will try to get a photo. Rock auto did show they had it in stock
__________________
71 C-20
07 Magnum RT AWD
54blackhornet is offline   Reply With Quote
Old 07-07-2020, 03:42 PM   #21
68Gold/white
Registered User
 
Join Date: Sep 2011
Location: Ark City, Kansas
Posts: 3,265
Re: Stock 71 V8 Y Pipe Help ?

It will make a difference if you have a standard trans or an automatic. Remember the cross members are different and in different places.
68Gold/white is offline   Reply With Quote
Old 07-07-2020, 06:32 PM   #22
FirstOwner69
Senior Member
 
FirstOwner69's Avatar
 
Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,835
Re: Stock 71 V8 Y Pipe Help ?

Quote:
Originally Posted by Bearhawg View Post
I would be very interested in pictures as well. My y-pipe exits the driver side. The passenger side down pipe routes around the starter and crosses over to meet the driver side down pipe. most of the pictures I've seen the driver side down pipe crosses over to meet the passenger side down pipe. I have a 350cid/TH350 if that makes a difference.
This is how it looked originally.
Attached Images
  
__________________
Jim
FirstOwner69 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 07:55 AM.


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