C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

1973 EGR Delete

Thread Tools
 
Search this Thread
 
Old Dec 9, 2024 | 12:01 PM
  #1  
TJChevy's Avatar
TJChevy
Thread Starter
6th Gear
 
Joined: Dec 2024
Posts: 6
Likes: 0
From: Hill Country
Default 1973 EGR Delete

Hello. Cleaning up the engine compartment on my 1973 K-10 and discovered that I have a corvette intake. Maybe the entire engine. Anyways if anyone know of an EGR delete plate/kit please let me know. I may just fab a plate and RTV it in place. The EGR does not bolt directly on. It is held in place by a bracket/clamp. The previous owner had a piece of tin under the valve and clamped on as intended but I prefer to get it out of the way entirely. Any advice is appreciated.
-TJ
Reply
Old Dec 9, 2024 | 12:14 PM
  #2  
Redvette2's Avatar
Redvette2
Drifting
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2013
Posts: 1,572
Likes: 486
From: Loud, Raw and Dangerous 1968 327 4S in Southern California
Default

I think I recently saw a block off plate for this on the site...one of the other members might know about it. Also if you give us the engine block stamped numbers and letters (located on the passenger side front pad) we might be able to tell you more about the engine.
Reply
Old Dec 9, 2024 | 12:57 PM
  #3  
leadfoot4's Avatar
leadfoot4
Team Owner
25 Year Member
Active Streak: 60 Days
Active Streak: 90 Days
Community Builder
 
Joined: May 2001
Posts: 87,367
Likes: 1,593
From: Western NY
Default

It might be easier, and "cleaner", to swap to a non-EGR intake............


(keep in mind, either the EGR valve, or the block off plate seal up the exhaust crossover of the manifold. If that passage isn't blocked off tightly, you run the risk of leaking exhaust fumes into the car.)
Reply
Old Dec 9, 2024 | 01:17 PM
  #4  
TJChevy's Avatar
TJChevy
Thread Starter
6th Gear
 
Joined: Dec 2024
Posts: 6
Likes: 0
From: Hill Country
Default

Thank you!

VO918TJD. The second character is not real clear, but probably "O".
Reply
Old Dec 9, 2024 | 02:17 PM
  #5  
TJChevy's Avatar
TJChevy
Thread Starter
6th Gear
 
Joined: Dec 2024
Posts: 6
Likes: 0
From: Hill Country
Default

I hear ya! Hoping to go through the entire motor at some point, but just need it running at the moment.
Reply
Old Dec 9, 2024 | 02:34 PM
  #6  
Redvette2's Avatar
Redvette2
Drifting
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2013
Posts: 1,572
Likes: 486
From: Loud, Raw and Dangerous 1968 327 4S in Southern California
Default

Originally Posted by TJChevy
Thank you!

VO918TJD. The second character is not real clear, but probably "O".
Doesn't look like a Corvette engine code (TJD). One of my code lookup books shows it as a 1974, 350ci, 160 hp. used on C10's and 1500 series.
Reply
Old Dec 9, 2024 | 02:38 PM
  #7  
TJChevy's Avatar
TJChevy
Thread Starter
6th Gear
 
Joined: Dec 2024
Posts: 6
Likes: 0
From: Hill Country
Default

Yeah, Looks that way. Someone put that manifold on it for some reason. Thanks!
Reply
Old Dec 9, 2024 | 04:04 PM
  #8  
4-vettes's Avatar
4-vettes
Race Director
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Nov 2006
Posts: 13,230
Likes: 7,826
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
Default

Block off plates work fine. Way back when I just fabed one up. Nothing fancy. That worked for a couple years until I purchased a aftermarket intake manifold.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

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

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

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

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Dec 9, 2024 | 04:30 PM
  #9  
Piersonpie's Avatar
Piersonpie
Melting Slicks
Shutterbug
Loved
Community Favorite
Top Answer: 5
 
Joined: Apr 2021
Posts: 2,711
Likes: 2,160
From: Minnesota
Default

I think it was me talking about them. Here’s the picture I used in that thread.


Although I’m sure if you have a spare piece of sheet metal around you can make one for the low price of free.
Reply
Old Dec 9, 2024 | 04:50 PM
  #10  
Laughing Coyote's Avatar
Laughing Coyote
Racer
Veteran: National Guard
Liked
Loved
Community Favorite
 
Joined: Nov 2023
Posts: 295
Likes: 502
From: Vail, AZ
Default

I made one for mine. Drilled and tapped screws and added rtv to the bottom before mounting.
Reply
Old Dec 9, 2024 | 09:07 PM
  #11  
TJChevy's Avatar
TJChevy
Thread Starter
6th Gear
 
Joined: Dec 2024
Posts: 6
Likes: 0
From: Hill Country
Default

That does not work on this particular manifold. Thanks though!
Reply
Old Dec 9, 2024 | 09:08 PM
  #12  
TJChevy's Avatar
TJChevy
Thread Starter
6th Gear
 
Joined: Dec 2024
Posts: 6
Likes: 0
From: Hill Country
Default

Clean job!
Reply
Old Dec 10, 2024 | 05:52 AM
  #13  
4-vettes's Avatar
4-vettes
Race Director
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Nov 2006
Posts: 13,230
Likes: 7,826
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
Default

Yes mine certainly didn't look like that either. But hopefully ya get the idea. A chunk of metal a bit thicker than sheet metal, cut it out to fit. Bolt into place. It's really that simple.
Or, purchase a aftermarket intake manifold that doesn't even have a exhaust crossover. Even better but more time, gaskets, money.
Reply

Get notified of new replies

To 1973 EGR Delete





All times are GMT -4. The time now is 08:43 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE