View Full Version : Pics of orignal 71 Z28 tailpipes...


71RS350
11-18-2009, 11:52:06 PM
hey guys...well thinking about getting new dynomax ultraflow system put on my camaro and always like the factory Z28 tailpipes.....thinking getting my exhaust guy to fab up some repo of the orignal angle they came out at.....any body got any detail photo of orignal tailpipes???

Thanks,
matt

TommyRS70
11-19-2009, 12:37:26 AM
Hope these help!

http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0650copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0654copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0655copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0656copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0658copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0664copy.jpg

71RS350
11-19-2009, 12:42:24 AM
<a href="http://s68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/?action=view&current=IMG_0650copy.jpg" target="_blank"><img src="http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0650copy.jpg" border="0" alt="Photobucket"></a> <a href="http://s68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/?action=view&current=IMG_0651copy.jpg" target="_blank"><img src="http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0651copy.jpg" border="0" alt="Photobucket"></a> <a href="http://s68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/?action=view&current=IMG_0652copy.jpg" target="_blank"><img src="http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0652copy.jpg" border="0" alt="Photobucket"></a> <a href="http://s68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/?action=view&current=IMG_0652copy.jpg" target="_blank"><img src="http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0652copy.jpg" border="0" alt="Photobucket"></a>

link dont work....try again...:confused:

71RS350
11-19-2009, 12:56:11 AM
Hope these help!

http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0650copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0654copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0655copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0656copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0658copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0664copy.jpg

very nice....i wish could get a detail pic of them on a car from an angle...i want to know how close there to the body and how far they're out and all that mess...lol:) :confused: :bowtie:

DCL70
11-19-2009, 09:15:38 AM
Hope these help!

http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0650copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0654copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0655copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0656copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0658copy.jpg http://i68.photobucket.com/albums/i39/tommyrs70/1971%20nos%20tail%20pipes/IMG_0664copy.jpg
The stickers on the pipes look like they may be GM part number stickers. If so, are the GM part numbers 3992573 and 3992574 for a 1971? My used original 70 SS350 tailpipes have a welded seam without the factory indentations and only the end sections are chrome plated (GM # 3984569 & 3984570).

SG71SS
11-19-2009, 11:35:13 AM
The stickers on the pipes look like they may be GM part number stickers. If so, are the GM part numbers 3992573 and 3992574 for a 1971? My used original 70 SS350 tailpipes have a welded seam without the factory indentations and only the end sections are chrome plated (GM # 3984569 & 3984570).

The original tailpipes on my 71SS are also only chrome plated for about 12" from the end of the pipe. The pipes do not come out in a stright line. They hug the body lines at the bottom of the rear quarters and then exit under the rear valance under the two cut outs on the valance.

http://mysite.verizon.net/res8ibgr/camaro/pipes1.jpg
http://mysite.verizon.net/res8ibgr/camaro/pipes2.jpg

COPO
11-19-2009, 02:00:53 PM
Both my 70 and 71 Z28 came with the fully chromed tailpipes that were angled inward as in the above post. Some came straight like in 69 with the tips only chromed as in a set I got years ago from someone who took them off a 70 Z28 that was 3 months old.
IMO, I like the fully chromed ones that angle inward where the rear cuts are in the lower body.



http://www.nastyz28.com/~copo/images/tail_pipe_2.jpg
3 month old pipes

http://www.nastyz28.com/~copo/images/tail_pipe_angled_inward.jpg
My fully chromed pipes

TommyRS70
11-19-2009, 04:15:04 PM
YEs, these are GM NOS tail pipes: 3992573 and 3992574.

R Mitchell
11-19-2009, 06:09:09 PM
The Parts Place in Elburn IL is now reproducing the chrome exhaust tips....229 for the pair. They used a pair of original tips as a pattern to come up with the reproductions, and I say they look pretty darn good! Here is a couple pics of an original and the re-pop side by side....you be the judge


original on the bottom and repop on the top:

http://img.photobucket.com/albums/v674/dagcostello/IMG_4292.jpg

The brackets side by side, while not 100% identical to the original still a very nice reproduction.

http://img.photobucket.com/albums/v674/dagcostello/IMG_4293.jpg[/QUOTE]

71RS350
11-19-2009, 07:35:52 PM
thanks guys...

CamarosRus
11-19-2009, 08:37:55 PM
Dave, I'm surprised too read you quoting the ALL Chrome One piece pipe as a 71 part number.

I would have said that 71 Dual exhaust Camaros (L-48, LS-3, Z-28) had the two part welded design that angled inward at rear.

This tailpipe subject has been discussed in one or more past threads (??)

I dont have time now, but later can check with people like Dennis Thomas (71 Z) , Eric Thompson (7,000 mile 72 Z) and come back with more comments

Is it not true that in 73 the tailpipe was one piece NON Chromed ??? material (aluminized coated)

COPO
11-19-2009, 09:22:19 PM
Chuck, hate to tell you but your incorrect on the 71 Z28.
I owned a 71 Z28 in 1975 and it came with the all chrome tail pipes from tip to tip that angled inwards. When I put headers on my 71, I kept the tailpipes and actually have used one of them on my 70 Z28 due to rust at the connection on my 70.

Chuck, your correct about the 73 Z28 tailpipes not being chromed.

I know this topic has been kicked to death. People didn't believe me in the old posts, but I was there in 75 with a 71 Z28 while others were not even born.

My 71 Z28
http://www.nastyz28.com/~copo/images/71_RR.jpg

tom3
11-19-2009, 10:00:46 PM
Sure looks like somebody would repop those early pipes with the chrome ends for reasonable money. See them go for a grand on Ebay now and then. Really a crowning touch on the cars.

SG71SS
11-19-2009, 10:07:46 PM
FWIW, the tail pipes on my citrus green 71SS in the pictures above are like the ones in COPO's pictures - chrome up to the the bracket and then unchromed to the end where it attaches to the muffler.

COPO
11-19-2009, 10:17:07 PM
Wonder if just the Z received the fully chromed pipes.
BTW, those are pretty wicked indentations near the hanger on those NOS pipes.

CamarosRus
11-20-2009, 12:06:27 AM
Mark, I'm now coming to the conclusion that during the 71 Model Year Productiion run, the pipe design was changed from welded two piece/half chrome to one piece all chrome.........

NOW the issue is to figure out changeover time window........

71' Owners who know they have their original tailpipes list plant, week/month of build and style of pipe ( 1 pc all chrome or 2pc, chrome tip, angled inward)

Thanks,

COPO
11-20-2009, 12:09:15 AM
Chuck, how can that be since my 70 Z28 came with the all chrome angled tail pipes?
I bet the line had 2 parts bins and the workers were told, once the fully chromed pipes run out and you need pipes, use the 2 piece until the stock is replenished.

DCL70
11-20-2009, 12:18:54 AM
Dave, I'm surprised too read you quoting the ALL Chrome One piece pipe as a 71 part number.

I would have said that 71 Dual exhaust Camaros (L-48, LS-3, Z-28) had the two part welded design that angled inward at rear.

This tailpipe subject has been discussed in one or more past threads (??)

I dont have time now, but later can check with people like Dennis Thomas (71 Z) , Eric Thompson (7,000 mile 72 Z) and come back with more comments

Is it not true that in 73 the tailpipe was one piece NON Chromed ??? material (aluminized coated)

Chuck,

According to my two 1971 Chevrolet Parts Catalogs (effective Sept. 1970 and Jan. 1971) the tailpipe part numbers for the 1971 Camaro 350w/4BC and 400 w/4BC are 3992573 & 3992574 (Gr. 3.705). The GM tags on the NOS all chrome one piece pipes as pictured by TommyRS70 have these numbers (see post #2 and post #8).

al8apex
11-20-2009, 02:14:57 PM
70 pipes are all by their selves, they go straight back

71 and up pipes appear like the pictures shown above, angled toward the center

My July 70 Van Nuys Z28 pipes:

http://i8.photobucket.com/albums/a26/JimRohn/71z/zbeaterexhb.jpg

http://i8.photobucket.com/albums/a26/JimRohn/71z/zbeaterexh.jpg

http://i8.photobucket.com/albums/a26/JimRohn/71z/70zbeaterrhexhb.jpg

http://i8.photobucket.com/albums/a26/JimRohn/71z/70zbeaterlfexha.jpg

http://i8.photobucket.com/albums/a26/JimRohn/71z/70zbeaterrhexha.jpg

the world famous COPO 70 Z28:

http://i8.photobucket.com/albums/a26/JimRohn/71z/70zcopoblkdsm.jpg

again, the 71 tips are WAY different:

http://i8.photobucket.com/albums/a26/JimRohn/Paper/71z28pr.jpg

^ air brushed 70 pic made into a 71 by GM Photographic ^
(notice how goofy the rear spoiler is)

tom3
11-20-2009, 04:23:18 PM
Only actual 70 pipes I've seen were a set that a guy was cutting off the ends to weld to new pipes, the originals were for sure two piece with the last part chromed. I guess the chrome made that part last longer. al8apex's pictures are on the money for 1970. Rare pieces.


Edit, wrong name, sorry.

COPO
11-20-2009, 04:36:03 PM
Both my 70 Z28 and 71 Z28 came with fully chromed and angled inward. I'm the 2nd owner and GM Experimental in Oshawa ordered the car.

CamarosRus
11-22-2009, 11:47:05 PM
Mark, I respectfully differ with your all chrome assertion on 70 Camaro 4BC dual exhaust. I spoke with Jack Seymour, Mike Steitz, Rick Griffin (Z-28 registry) and everyone this weekend in Chicago. My own 07E (one of the last built) Norwood 70 Z has the two piece chrome pipes.

Regarding the 71 pipes, Spoke to Dennis Thomas regarding his December (1970) built 71. His has the TWO PIECE chrome tips that are angled inward.
Now then, we need to have a response from 71 Owners who know they have ORIGINAL tailpipes on thier cars, so we can determine when and where the two piece/one piece changeover occured.

Please post your car 71 Camaro build date, and build location and what style of tailpipe you have. If you DONT KNOW that its OEM, please dont guess.

Also like to hear from 72 (one piece chrome) and 73 (one piece NON chrome) owners to confirm those years.

SG71SS
11-23-2009, 12:54:11 PM
Please post your car 71 Camaro build date, and build location and what style of tailpipe you have. If you DONT KNOW that its OEM, please dont guess.


Original tips are on my Citrus Green 71SS as seen in pics on page 1 of this thread. Angled inward. 2 piece design with chrome tips. TT build date is 08C. VIN is 1N502145. # matching motor is V0817CDJ. Blue GM door sticker shows 8/70.

FlaJunkie
11-23-2009, 01:32:59 PM
Mark, I respectfully differ with your all chrome assertion on 70 Camaro 4BC dual exhaust. I spoke with Jack Seymour, Mike Steitz, Rick Griffin (Z-28 registry) and everyone this weekend in Chicago. My own 07E (one of the last built) Norwood 70 Z has the two piece chrome pipes.


My March 1970 Z-28 didn't have chrome pipes and although most of it was replaced one part at a time during its' life, it looks like this:

http://my1970z28.com/pics/muff-up/

R Mitchell
11-23-2009, 05:13:14 PM
Fla...from what I know about 1970 Z28's the exhaust system you have pictured was not original to the car. The muffler is not flat on top like the original one that was on my car, and your pipes were not fish mouthed on the ends like the factory pipes were. I also notice that there are no crinkles in any of the bends like the factory systems had.

FlaJunkie
11-23-2009, 07:26:47 PM
Fla...from what I know about 1970 Z28's the exhaust system you have pictured was not original to the car. The muffler is not flat on top like the original one that was on my car, and your pipes were not fish mouthed on the ends like the factory pipes were. I also notice that there are no crinkles in any of the bends like the factory systems had.

I know it isn't the original muffler; the car has over 100K miles on it. I had most of the exhaust system replaced at one time or another, but the replacement parts were what midas used that were close to the original parts.

This is what the system looked like on the car, sans factory parts.

What is fish mouthed?

CamarosRus
11-23-2009, 07:58:00 PM
Sal, Thanks for your OEM/Original info........

Guys can we please try to stay focused on known, original OEM pieces .......

Just trying to gather more conclusive info when some of these parts changeovers occurred........

Thanks

FlaJunkie
11-23-2009, 08:27:54 PM
Sal, Thanks for your OEM/Original info........

Guys can we please try to stay focused on known, original OEM pieces .......

Just trying to gather more conclusive info when some of these parts changeovers occurred........

Thanks

Sorry to tweak your whistle, C-Rus. How do you know my marked Z-28 that didn't have chrome tips (that I remember) wasn't an OEM for some of the cars produced? Mine was the 13,338 Camaro made that year; maybe they ran outta the chrome parts in Norwood that day?

Or maybe it did have the chrome tips but I don't remember giving it a second thought because NOBODY LOOKED AT THE TAILPIPES, just your taillights as you screamed by? :p

M21RSZ28
11-24-2009, 01:57:41 AM
Both my 70 and 71 Z28 came with the fully chromed tailpipes that were angled inward as in the above post. Some came straight like in 69 with the tips only chromed as in a set I got years ago from someone who took them off a 70 Z28 that was 3 months old.
IMO, I like the fully chromed ones that angle inward where the rear cuts are in the lower body


I have poured over all the original materials I have and not a single 1970 Z28 had the angled tail pipes. I picked just one 1970 magazine article from a car known to have a later build date.

Below is a pic from July 1970 Mechanix Illustrated showing Bunkie Knudsen's 1970 Z28 with the large 3 piece spoiler described as king-size and not as a COPO spoiler.

Stop looking at the king size spoiler and you will see the chrome tip of the dual exhaust and it is straight, as are all the other pictures of 1970 SS & Z28 Camaros in 1970 dated Magazines.

The the last three pics show the parts numbers for 1970 1971 and 1972 dual exhaust tail pipes. 1970 lists only one, not two different tail pipe assemblies.

I have my original tail pipe assemblies from my Van Nuys built March 1970 1st week Z28 and they are chromed up to the tail pipe hanger bracket and come out straight not angled as 1971 Z28 pipe are.

So far I have not found any articles or photos to help with the 1971 tail pipe question but will keep looking


M21RSZ28

http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/100_2054.jpg
http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/100_2060.jpg


http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/100_2056.jpg
http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/100_2057.jpg
http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/100_2058.jpg

FlaJunkie
11-24-2009, 09:14:31 AM
I have poured over all the original materials I have and not a single 1970 Z28 had the angled tail pipes. I picked just one 1970 magazine article from a car known to have a later build date.

Below is a pic from July 1970 Mechanix Illustrated showing Bunkie Knudsen's 1970 Z28 with the large 3 piece spoiler described as king-size and not as a COPO spoiler.

Stop looking at the king size spoiler and you will see the chrome tip of the dual exhaust and it is straight, as are all the other pictures of 1970 SS & Z28 Camaros in 1970 dated Magazines.

The the last three pics show the parts numbers for 1970 1971 and 1972 dual exhaust tail pipes. 1970 lists only one, not two different tail pipe assemblies.

I have my original tail pipe assemblies from my Van Nuys built March 1970 1st week Z28 and they are chromed up to the tail pipe hanger bracket and come out straight not angled as 1971 Z28 pipe are.

So far I have not found any articles or photos to help with the 1971 tail pipe question but will keep looking


M21RSZ28



Hey M21: Can you tell me what part went on the 1969 Camaro? I think they may have mixed parts since the early 1970 models were 1969 body styles! Or is that an old Camaro-wives tale? :confused:

CamarosRus
11-24-2009, 11:34:35 AM
M21RSZ28, Once again youve demonstrated, that you have access to more 70+ Camaro documentation than anyone else on the internet.

Your 71' Chart above shows one tailpipe # for Right , one for Left.
Either the design changed keeping the part numbers, or your chart only shows current # at time that chart was implemented.

How can we conclude what time line was for changeover in 1971 Model Year from Two piece partial chrome to one piece ALL Chrome ???

Thanks

M21RSZ28
11-24-2009, 01:42:42 PM
How can we conclude what time line was for changeover in 1971 Model Year from Two piece partial chrome to one piece ALL Chrome ???

Thanks

We need owners with original cars to document the time change. Parts catalogs are great but will not help us determine the time line history of tail pipe assemblies on the assembly line for 1971 Z28 Camaros.

Gardner Exhaust is aware of the 1st design 2 piece tail pipe chromed up to the hanger bracket which angles inward vs later production 2nd design one piece tail pipe chromed from end to end which angles inward also.

Gardner only offers the 2nd design one piece tail pipe that is completely chromed from end to end.

M21RSZ28

M21RSZ28
11-24-2009, 04:30:04 PM
Your 71' Chart above shows one tailpipe # for Right , one for Left.
Either the design changed keeping the part numbers, or your chart only shows current # at time that chart was implemented.

The pic below is from the 1971 Passenger Car Chevelle Camaro Nova Parts and Accessories Catalog dated September 1970, can't
get any earlier than that but this early catalog uses the same part number as the August 1971 catalog.

We know for a fact that 1971 Camaro used the 1st design 2 piece partially chromed tail pipe and the 2nd design 1 piece
all chromed tail pipe but we need more pieces of the puzzle for an accurate date of change on the assembly line.

M21RSZ28

http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/100_2070.jpg

CamarosRus
11-24-2009, 06:35:26 PM
My present opinion is that we wont be able to collect enough accurate 1971 info (i.e. Original cars, Original tailpipes, build dates, plant location) to draw a accurate time line conclusion.

We shall see.

COPO
11-24-2009, 07:53:23 PM
^^
again, both my 70 and 71 Z28's came with the FULLY chromed tail pipes. Explain that when I bought the 71 in 75. I say there were 2 suppliers and 2 bins beside the line worker and he was the one that chose what went on.

R Mitchell
11-24-2009, 08:12:22 PM
Sorry Mark but I have to side with Chuck on this one.....I've seen many many 1970 Z28's (more than 150) and I've never ever seen one with all chrome pipes from the tip to the muffler. Personally I just don't think it was possible on a 1970 from the factory especially since they didn't switch to full chrome tail pipes until sometime in mid 1971. Doesn't make me think any less of your car....your orange 1970 is a beauty!!

al8apex
11-25-2009, 02:30:53 AM
^^
again, both my 70 and 71 Z28's came with the FULLY chromed tail pipes. Explain that when I bought the 71 in 75. I say there were 2 suppliers and 2 bins beside the line worker and he was the one that chose what went on.

I'll try to explain that for you.

I used to live in the Detroit area.

Cars had their exhaust systems changed every 3 years or less, chicago, toledo, pittsburgh, anywhere in that area.

the REPLACEMENT tailpipes were available in CHROME, the WHOLE pipe (assuming someone sprung the extra $$ for the chrome pipes, you could get the same pipes but not chromed for less). I am referring to aftermarket pipes, I have no idea what GM offered back then, NO ONE bought exhaust parts from the dealer, you went to Sears or any one of the 100's of exhaust shops.

Your 71 COULD have already had a replacement exhaust on it by 75

My 70 Z28 has the ORIGINAL assembly line exhaust on it because it is a born in AZ (well BORN in Van Nuys, it is an AZ native) car and the exhaust does not rot out here ...

travistrick
11-26-2009, 05:46:13 PM
http://s585.photobucket.com/albums/ss293/travistrick/?albumview=slideshow&track=share_email_album_view_click

This is a system I bought myself in 1979 from kelly chevrolet in hollywood florida when I was 19 years old, I bought the system because I wrecked my 71 z28 , it sat for a year before I decided to try to rebuild it, but that never happened , I stored these parts in my garage all these years, I have been reading the posts and thought I would share what I know or think I know, I,ve seen the all chromed pipes before and the gm numbers that are associated with the all chromed pipes, I am no expert , but what I believe is that if you went back in the day and ordered a set of tailpipes for a dual exaust camaro you recieved a GM all chromed tial pipes, I went into gm and asked for a set of tail pipes back in 1979 for a 1971 z28 camaro, gave them no part number , and the pipes in the link is exactly what they gave me , a true walker system that came with the car originally, so is far as I believe , GM made the all chrome tail pipes for non z 28 camaro,s, and walker made all z28 camaro tailpipes, anyways seeing is believing, as you can see a true walker system from the axle pipes and muffler , to the tailpipes, I joined this site for all the great information, and help, I learn something from this site all the time, I,ve owned lots of 70 to 71 z28,s but I am no expert, this is just my opinion.

FlaJunkie
11-27-2009, 06:34:03 AM
http://s585.photobucket.com/albums/ss293/travistrick/?albumview=slideshow&track=share_email_album_view_click

This is a system I bought myself in 1979 from kelly chevrolet in hollywood florida when I was 19 years old, I bought the system because I wrecked my 71 z28 , it sat for a year before I decided to try to rebuild it, but that never happened , I stored these parts in my garage all these years, I have been reading the posts and thought I would share what I know or think I know, I,ve seen the all chromed pipes before and the gm numbers that are associated with the all chromed pipes, I am no expert , but what I believe is that if you went back in the day and ordered a set of tailpipes for a dual exaust camaro you recieved a GM all chromed tial pipes, I went into gm and asked for a set of tail pipes back in 1979 for a 1971 z28 camaro, gave them no part number , and the pipes in the link is exactly what they gave me , a true walker system that came with the car originally, so is far as I believe , GM made the all chrome tail pipes for non z 28 camaro,s, and walker made all z28 camaro tailpipes, anyways seeing is believing, as you can see a true walker system from the axle pipes and muffler , to the tailpipes, I joined this site for all the great information, and help, I learn something from this site all the time, I,ve owned lots of 70 to 71 z28,s but I am no expert, this is just my opinion.

Wanna sell them?

tom3
11-27-2009, 07:12:24 AM
Hit those with a Brillo pad, $1000 on Fleabay. My oh my.

CamarosRus
11-27-2009, 12:15:39 PM
I dont believe those WALKER pieces as shown above were same as assy line installed exhaust pipes at Norwood or L.A. plants in 70 and 71.

Not doubting a Chevrolet Parts dept sold them to you. Not doubting what someone told you.

Suggesting you were misinformed regarding the pictured parts being same as production line installed.

I'd also like to See Better Pics of the above "N.O.S." muffler

travistrick
11-27-2009, 09:01:28 PM
Like I said before I am no expert on z28,s although I have owened about 10 70 and 71 z28,s and all I can say is most all had the 2 piece walker tail pipes on them, there were are few that had aftermarket systems, but they were not all chromed tail pipes, but anyone who knows about 70 , to 71 z28,s knows walker was the exclussive manufacture for the exhaust system for those years, with out a dought, now I,am not saying that in the assembly line maybe they ran short of the walker pipes, and used the all chrome standard tail pipes that they used for sure on standard dual exhaust camaro,s all I saying is that the pipes in the picture are z28 two piece walker pipes, the part numbers are there to see, the reason there is dought is that it,s the first time anyone has seen nos walker tail pipes before you can see they are camaro not chevelle, not nova or anything else, you see the part numbers for the tailpipes , and the over the axle pipes as well, also the nos walker muffler, the muffler itself is not the flat top, it is rounded on the top and the bottom, but it was bought in 79, maybe they stopped offering the flat top muffler by then, also the gm parts books are not an exact science, you can,t find these part numbers there from the walker pipes, but you can probably still call walker and inquire about the pipes, all in all it,s just my speculation about the pipes and my expieriance over the years with these car,s , but to say these pipes were not the pipes that came from the assembly line from van nuys or norward is rediculous, were did they come from??. Did they send the z28,s to the walker assembly line, did walker come to your house and reinstall them after you bought the car?? How else do you think they got there, well in the end I guess your guess is as good as mine!!

al8apex
11-27-2009, 11:10:16 PM
coff (spellchecker) coff

M21RSZ28
11-28-2009, 01:04:11 AM
Like I said before I am no expert on z28,s although I have owened about 10 70 and 71 z28,s and all I can say is most all had the 2 piece walker tail pipes..... walker was the exclussive manufacture for the exhaust system for those years, with out a dought,..... , all in all it,s just my speculation about the pipes...... but to say these pipes were not the pipes that came from the assembly line from van nuys or norward is rediculous..... well in the end I guess your guess is as good as mine!!

First of all I don't guess, GM did not sell GM parts with the Manufacture's part number and logo on their parts such as your Walker Exhaust system.

Your Walker System would have been sold thru Muffler Shops and part stores such as Napa not from GM Chevrolet Parts Departments.

GM parts manufactured by their suppliers have only GM tags with GM Logos and GM part numbers on them.

Original GM parts sold thru the early 70's used white tags with "Genuine General Motors Parts" with the GM Part Number as shown below with the
NOS GM 3983066 Muffler.

The NOS Walker exhaust system when compared to the Orignal GM style exhaust is very different when it comes to the wrinkled bends which even Gardner Exhaust can not match exact. You would think the wrinkles in the bends on NOS Walker system would match the wrinkles in the bends on original GM exhaust systems.

Below are pics of original pipes off my 1970 Z28, a section of exhaust pipe from the muffler to the header pipe at the center of the car with the original correct style wrinkles which are not like the wrinkles in your NOS Walker System.

Anyway your NOS Walker Exhaust System is in no way an exhaust system sold thru a GM Dealer's Parts Department for 1970-71 Camaro with dual exhaust.

M21RSZ28


http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/100_2100.jpg
http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/100_2101.jpg
http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/100_2102.jpg
http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/resized.jpg
http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/019.jpg
http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/2983066GMBOX.jpg
http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/nosmufflerII.jpg
http://i108.photobucket.com/albums/n22/M21RSZ28/NASTY%20Z28/nosmuffler.jpg

M21RSZ28
11-28-2009, 02:54:47 AM
Ok we can B.S. all day long, lets get back to the real subject, owners of 1971 Z28 Camaros with original exhaust or at least original tail pipes need to respond with some facts and photos.

M21RSZ28

CamarosRus
11-28-2009, 03:11:19 AM
M21RSZ28, I find it odd that you didnt quote which exh pipe mfg was the vendor for the OEM assy line pipes in 1970.
FYI, I was the person who sent TOM GARDNER my surface rusted 1970 over the axle exhaust pipes, when he needed originals to copy. He sourced his 70 Tailpipes from someone else as I still have mine.
For some reason the mfg name of ARVIN sticks in my mind. Might they have been the exh pipe vendor.
what about the letter W stamped into the OEM 066 Muffler case. Did that stand for WALKER or not ???

FlaJunkie
11-28-2009, 08:23:40 AM
Ok we can B.S. all day long, lets get back to the real subject, owners of 1971 Z28 Camaros with original exhaust or at least original tail pipes need to respond with some facts and photos.

M21RSZ28

Heck, I'm enjoying the diatribe! Who cares about what model year you are tracking?

I know...you do! Very interesting.