C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Rear Vents on Deck Lid

Thread Tools
 
Search this Thread
 
Old Jul 11, 2002 | 10:35 PM
  #21  
joe73vette's Avatar
joe73vette
Melting Slicks
 
Joined: Dec 2000
Posts: 2,198
Likes: 2
From: Eastern Connecticut
Default Re: Rear Vents on Deck Lid (Juliet)

Wow, learn something new every day! 26 1/2" on my 73. I always thought something was missing on mine. But I have A/C, so I am supposed to see the ground thru those vents! Thanks, everyone. Joe
Reply
Old Jul 11, 2002 | 10:44 PM
  #22  
Juliet's Avatar
Juliet
Le Mans Master
20 Year Member
 
Joined: Jul 1999
Posts: 7,072
Likes: 4
From: Maryland
Default Re: Rear Vents on Deck Lid (joe73vette)

But I have A/C, so I am supposed to see the ground thru those vents!
:crazy: It sure solves the clogged drain problem. I wonder why they bothered with the vents though if there's nothing underneath it? Does the 73 coupe (or vert) with the Astro Ventilation stuff intact have a plenum fiberglassed in place? I'm just surprised that GM didn't ditch the vent grilles to save a buck. :eek:
Reply
Old Jul 12, 2002 | 12:20 AM
  #23  
Phlash's Avatar
Phlash
Racer
20 Year Member
 
Joined: Oct 2001
Posts: 274
Likes: 2
From: Pampa Tx
Default Re: Rear Vents on Deck Lid (Juliet)

Same here, I thought my rear deck had been messed with on my 72 vert. Nice to know.

Phlash 72 BB Roadster :bb
Reply
Old Jul 12, 2002 | 12:48 PM
  #24  
joe73vette's Avatar
joe73vette
Melting Slicks
 
Joined: Dec 2000
Posts: 2,198
Likes: 2
From: Eastern Connecticut
Default Re: Rear Vents on Deck Lid (Juliet)

I have no reason to think the person who rebuilt my car in 1987 deleted anything back there - he seems to have done good job, using GM parts whenever possible. (To the tune of $15,000 in receipts). I have AC and Astro-Ventilation is etched in the window glass.

WRT the vents, perhaps GM styling won out over the bean counters? Or maybe it was easier to leave them in all cars, since they needed them for the non-AC cars. Joe
Reply
Old Jul 12, 2002 | 01:00 PM
  #25  
Skruball73's Avatar
Skruball73
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jul 2001
Posts: 1,051
Likes: 0
From: Inside every color vette there is a blue one trying to come out!
Default Re: Rear Vents on Deck Lid (Phlash)

One thing that wasn't mentioned through out this entire thread, was that he might have dry rotted/cracked hose leading to the wheel well...that's what I found with mine, replaced the hoses and now no leaks, except for the seal around the removable back glass kit that was put in mine.
Reply
Old Jul 12, 2002 | 01:50 PM
  #26  
LAvetteman's Avatar
LAvetteman
Safety Car
20 Year Member
 
Joined: Jan 2001
Posts: 4,660
Likes: 3
From: South Central Louisiana
St. Jude Contributor
Default Re: Rear Vents on Deck Lid (Skruball73)

That would be true Skruball for a coupe. But the convertibles are set up a little different.
Reply
Old Jul 13, 2002 | 06:09 PM
  #27  
Tom73's Avatar
Tom73
Race Director
25 Year Member
Active Streak: 120 Days
All Eyes On Me
Liked
 
Joined: Apr 1999
Posts: 15,152
Likes: 477
From: NM
Default Re: Rear Vents on Deck Lid (Motor City Vette)

Here is a pic of the underside of my '73 convt. To the left is the front of the car. To the left of the vents at the top you can see the sealed openings where the Astro Vent assembly would be. This car has A/C so the openings are sealed. If it is was not a/c then there would be a "box" connecting the outside vent to the bulkhead vent. Since it is A/C there is no need for drains as the vents are open to the ground and water just runs through.

But since Juliet brought up the rear compartment change, which I was not aware of, I can see where the vents would be inside the rear compartments on earlier sharks. Apparently there is about a 4" difference. As you can see by the ruler, it appears that the 4" would have been enough to get the vents inside the compartment. In looking at the pic it appears that you can see where the rear bulkhead had been (at the 4" mark) and then the factory just moved it forward.

Juliet, do you have a pic of your bulkhead in this area? Would be very interesting to comapir.

tom...





[Modified by Tom73, 4:10 PM 7/13/2002]
Reply
Old Jul 13, 2002 | 06:57 PM
  #28  
Juliet's Avatar
Juliet
Le Mans Master
20 Year Member
 
Joined: Jul 1999
Posts: 7,072
Likes: 4
From: Maryland
Default Re: Rear Vents on Deck Lid (Tom73)

Here's the driver's side. Front of the car on the right. You can see the plenum drain on the rear wall.


Here's looking upwards. There are no grilles visible from underneath. To the left is the front of the car. This is the passenger side.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
Old Jul 13, 2002 | 09:32 PM
  #29  
Tom73's Avatar
Tom73
Race Director
25 Year Member
Active Streak: 120 Days
All Eyes On Me
Liked
 
Joined: Apr 1999
Posts: 15,152
Likes: 477
From: NM
Default Re: Rear Vents on Deck Lid (Juliet)

Thank you Juliet. It does look as if that verticle corner in my pic is the same as the rear wall on your pic. So they just moved that section 4" forward. Anyone know why? Could it be for crash protection, to give the gas tank 4 more inches before it gets crushed in a rear end accident? Or ????

tom...
Reply
Old Jul 15, 2002 | 02:49 PM
  #30  
Tom73's Avatar
Tom73
Race Director
25 Year Member
Active Streak: 120 Days
All Eyes On Me
Liked
 
Joined: Apr 1999
Posts: 15,152
Likes: 477
From: NM
Default Re: Rear Vents on Deck Lid (Tom73)

UPDATE: Okay, I posted this over on the NCRS board to see if I could get any feed back on the luggage compartment sizes. Seems that the 71, 72 and 73 all have 26" deep luggage compartments. Juliets 70 is 30". So would assume that 68-70 are 30" and 73-77 are 26". Would appreciate it if someone with a 68 or 69 could check their's. Also, how about a '76 or '77? These additional measurements could help confirm.

tom...
Reply




All times are GMT -4. The time now is 12:48 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE