EGR valve

Reply Subscribe

Thread Tools

Search this Thread

Dec 31, 2007 | 12:20 AM

popeye73

Thread Starter

Intermediate

Joined: Nov 2007

Posts: 39

Likes: 0

From: Houston Texas

EGR valve

I have a 73 and in need of a new egr valve, I am going to replace my Intake manifold with an aluminum edlebrock 1701 performer, are these egr valves interchangable 74 fit on a 73 etc, etc, if so does anyone have a good link?

Dec 31, 2007 | 08:30 AM

NBC3

Racer

Joined: Apr 2007

Posts: 443

Likes: 0

From: Rexton New Brunswick

Quote:

Originally Posted by popeye73

I replaced my intake with a cyclone (non EGR) got rid of it entirely. New intake, new carb, new breather...mmmmmmmmmmm shiny

Dec 31, 2007 | 10:10 AM

FB007

Burning Brakes

Joined: Dec 2007

Posts: 952

Likes: 0

Quote:

Originally Posted by NBC3

I replaced my intake with a cyclone (non EGR) got rid of it entirely. New intake, new carb, new breather...mmmmmmmmmmm shiny

Throw it in the trash.

Dec 31, 2007 | 11:18 AM

Artsvette73

Drifting

Joined: Jan 2004

Posts: 1,991

Likes: 3

From: Piscataway NJ

Egr valves are year specific and based on drive train option. Some were carry over years but not all.

Dec 31, 2007 | 02:47 PM

jonfor

Advanced

Joined: Dec 2007

Posts: 91

Likes: 0

From: Columbus GA

Quote:

Originally Posted by popeye73

EGR puts exhaust back to the intake side to reduce the amount of oxygen in the charge. it keeps detonation down due to the emissions tune being extremely lean. it's only necessary when running a stock cam/tune. it all seems very counter productive to me and my 2005 V8 didn't even come new with EGR. i agree with the other posters to let it go to extinction, especially if you have an aftermarket cam.

ps.... can you imagine being the engineer in that early 1970's meeting with the top brass explaining how it makes since to lower the oxygen content in a corvette engine for the sake of the environment?

Dec 31, 2007 | 07:20 PM

Patrick73

Burning Brakes

Joined: Aug 2004

Posts: 856

Likes: 2

From: Tyler Texas

Quote:

Originally Posted by popeye73

1973 and 1974 EGR valves are interchangeable for the most part. Same configuration, style and hold down clamp. Difference is not in appearance, but in specific application--4 speed vs auto, SB vs. BB, etc.

Jan 1, 2008 | 05:55 AM

popeye73

Thread Starter

Intermediate

Joined: Nov 2007

Posts: 39

Likes: 0

From: Houston Texas

Thanks guys and I have a stock cam.

Jan 1, 2008 | 12:53 PM

a kungfu mastah

Instructor

Joined: Nov 2006

Posts: 197

Likes: 9

From: Jamestown Rhode Island

mines just looking like bad on my valve cover, its been plugged since i got the car. i also havent gotton it inspected yet, maybe this week, probably not though. I just got an msd distributor with a 50k volt coil to burn off everything in the chamber. nothing left to recycle back into the manifold.