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| | |-+  Did all 69Z28 cowl induction breathers have a flat bottom ?
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Author Topic: Did all 69Z28 cowl induction breathers have a flat bottom ?  (Read 2700 times)
Northernforce
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« on: September 12, 2013, 03:33:23 PM »

Did all the 69Z28 cars have the flat bottom cowl induction ait breathers ?I know the ridge bottom ones were service replacement-Just curious if they had  switched anytime -thanks for any input!
Dave
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69pace
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« Reply #1 on: September 12, 2013, 05:50:17 PM »

Dave - flat for Camaro production. 70 Chevelle had ridges and so do the reproductions. Here is a great thread over at TC to reference http://www.camaros.net/forums/showthread.php?t=54696

Brian
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1969 Z-11 350/300 with 4 Speed
Charley
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« Reply #2 on: September 12, 2013, 06:48:44 PM »

I think there are examples of late 69 Camaro's without the flat bottom.
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69Z28
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« Reply #3 on: September 12, 2013, 07:05:03 PM »

I think there are examples of late 69 Camaro's without the flat bottom.


That was impression I got as well. I have all the GM parts for the ZL2 set up on my Z except the breather so my wife got me a repro from Ricks in 2001 for xmas and it has the ridge on the bottom. I thought I heard somewhere that the repro's where a copy of the late 69 model, but that info was from 12 years ago. I would like to get a flat bottom breather but they are hard to come by and very expensive from what I have seen.
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GaryC

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« Reply #4 on: September 12, 2013, 08:09:24 PM »

Dave - flat for Camaro production. 70 Chevelle had ridges and so do the reproductions. Here is a great thread over at TC to reference http://www.camaros.net/forums/showthread.php?t=54696
Brian
There are recent reproductions that are 'advertised' as 'flat bottoms'..... although I haven't seen them..
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
69pace
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« Reply #5 on: September 12, 2013, 09:31:21 PM »

There has always been unconfirmed speculation and theories by many that late August, September and November production end Camaro builds at Norwood were forced to adopt the Chevelle ridged bottom air cleaner base as the stocks of the Camaro flat bottom design were exhausted. Examples put forward as factory originals have not always survived testing and several have turned out to be Chevrolet service replacements which had the Chevelle ridge design after 1970 regardless of application and part numbers. Many "original" were added after factory as the ducted hood became widely popular as an aftermarket speed part and found its way onto 68, and 67 models. Several mid and late September 1969 Camaro builds still have flat bottoms. Anything is possible. We will never know for sure.
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z28z11
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« Reply #6 on: September 12, 2013, 09:49:43 PM »

I think there are examples of late 69 Camaro's without the flat bottom.

I would like to get a flat bottom breather but they are hard to come by and very expensive from what I have seen.

Parts Place has them on sale now - part # CW10062Z, about $169.00 if I remember correctly. Even features the "notch" on the air snout, which (previously) was always a great way to tell the difference in repops and original ZL2's. My NOS 6485891 has the notch, but is a late production with the ridged bottom. I'll post a pic when I can dig it out -

Regards,
Steve
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1968 Z28 BRG/W
1969 Z28 X77 LeMans/W
1969 X66 L78 Cortez/BVT
1969 Z11 L48
paceme
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« Reply #7 on: September 12, 2013, 10:06:18 PM »

I have inspected and certified several survivor late build 69Z's Sept & Oct and they have had the ridged bottom. Again this is from first hand experience (not speculation), so based on what I have seen yes the ridged bottom was used/ introduced in late July-early Aug.

Gary (69Z28-RS), I'm curious if you Sept built Z has a ridged bottom, because mine does.
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Steve Shauger
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« Reply #8 on: September 12, 2013, 11:12:00 PM »

Steve,

mine has a flat bottom....  09C build.
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
BULLITT65
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« Reply #9 on: September 13, 2013, 12:26:48 AM »

Can someone post a picture of what a flat bottom is and a example of a rigid please. ty
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1969 garnet red Z/28 46k mile unrestored X77
Looking for 3192477 (front) spiral shocks 3192851 (rear) please
Looking for an original LOF soft ray windshield
Looking for original Delco side post negative battery cable part # 6297651AV
69Z28-RS
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« Reply #10 on: September 13, 2013, 08:44:49 AM »

Austin.. (just for you)..  Smiley

Attached below are a couple of photos of my original cowl air cleaner (09C car - sept '69).
-maybe someone else can post a photo of an original 'seamed' bottom' air cleaner??
(aren't todays digital cameras convenient???)  Smiley
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
z28z11
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« Reply #11 on: September 13, 2013, 10:42:52 AM »

Ask and ye shall receive -

Note "4 spot" flame arrestor - was in the box when I bought it 25 years ago, at least - 

Regards,
Steve
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1968 Z28 BRG/W
1969 Z28 X77 LeMans/W
1969 X66 L78 Cortez/BVT
1969 Z11 L48
BULLITT65
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« Reply #12 on: September 13, 2013, 11:01:22 AM »

so the second design had a rib in the bottom?
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1969 garnet red Z/28 46k mile unrestored X77
Looking for 3192477 (front) spiral shocks 3192851 (rear) please
Looking for an original LOF soft ray windshield
Looking for original Delco side post negative battery cable part # 6297651AV
69Z28-RS
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« Reply #13 on: September 13, 2013, 12:18:03 PM »

Steve,

Can you take a photo of the full bottom from the bottom?  As a comparison to the flat bottom?
PS.  What did you mean by '4 spot' flame arrester?   first time I've heard that term....
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
z28z11
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« Reply #14 on: September 13, 2013, 09:16:24 PM »

Steve,

Can you take a photo of the full bottom from the bottom?  As a comparison to the flat bottom?
PS.  What did you mean by '4 spot' flame arrester?   first time I've heard that term....

Gary,

   Be glad to get it back out tomorrow for another shot. "4 spot" refers to 4 dimples evident in the top of the flame arrestor screen - NOS and originals have them, repops don't, as many as I've ever seen. I'll get a better pic of that , too -

Regards,
Steve
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1968 Z28 BRG/W
1969 Z28 X77 LeMans/W
1969 X66 L78 Cortez/BVT
1969 Z11 L48
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