The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-29-2008, 11:28 AM   #1
1970heavychevy
busted knuckles
 
1970heavychevy's Avatar
 
Join Date: Oct 2008
Location: Kennesaw, Georgia
Posts: 92
What are these holes for?

Name:  2.JPG
Views: 213
Size:  54.1 KB
1970heavychevy is offline   Reply With Quote
Old 10-29-2008, 11:31 AM   #2
DomesticDisturbance
Registered User
 
DomesticDisturbance's Avatar
 
Join Date: Oct 2008
Location: Portsmouth, Va
Posts: 33
Re: What are these holes for?

EGR valve
__________________
76 Chevy shortbed C-10, 350 w/turbo 350 trans(under construction)

cardomain page: http://www.cardomain.com/id/DmestcDisturbnce
DomesticDisturbance is offline   Reply With Quote
Old 10-29-2008, 11:35 AM   #3
1970heavychevy
busted knuckles
 
1970heavychevy's Avatar
 
Join Date: Oct 2008
Location: Kennesaw, Georgia
Posts: 92
Re: What are these holes for?

Would it run better if it had the EGR installed?
1970heavychevy is offline   Reply With Quote
Old 10-29-2008, 11:37 AM   #4
Cyclone
Registered User
 
Cyclone's Avatar
 
Join Date: Oct 2004
Location: Sonoma, CA
Posts: 319
Re: What are these holes for?

Runs better without, they are a manitenance item, use or make a plate. plate
Cyclone is offline   Reply With Quote
Old 10-29-2008, 11:40 AM   #5
1970heavychevy
busted knuckles
 
1970heavychevy's Avatar
 
Join Date: Oct 2008
Location: Kennesaw, Georgia
Posts: 92
Re: What are these holes for?

It had a plate but the gasket was old so I pulled it off and didn't know what it was for. Thanks
1970heavychevy is offline   Reply With Quote
Old 10-29-2008, 11:51 AM   #6
justcuz
Registered User
 
justcuz's Avatar
 
Join Date: May 2008
Location: Alta Loma, Ca.
Posts: 930
Re: What are these holes for?

What year truck is that in?
justcuz is offline   Reply With Quote
Old 10-29-2008, 11:56 AM   #7
1970heavychevy
busted knuckles
 
1970heavychevy's Avatar
 
Join Date: Oct 2008
Location: Kennesaw, Georgia
Posts: 92
Re: What are these holes for?

1970 C10 but its a 70' 350 Impala motor.
1970heavychevy is offline   Reply With Quote
Old 10-29-2008, 12:04 PM   #8
justcuz
Registered User
 
justcuz's Avatar
 
Join Date: May 2008
Location: Alta Loma, Ca.
Posts: 930
Re: What are these holes for?

OK, thats what I thought. Most trucks that early did not have an EGR valve. I see you have an HEI on it, so it is getting great spark. Do you have a curve kit in it? If it were mine I'd swap out the manifold for a non-EGR one. Look in the wrecking yard for truck manifolds, they are taller and have less junk on them. The intake out of a 70 Impala looks to be a lower profile manifold. Chevy makes several good factory intakes and a good cast iron one comes from a pickup. It is a little taller, giving you longer intake runners and a little better bottom end.
justcuz is offline   Reply With Quote
Old 10-29-2008, 12:11 PM   #9
1970heavychevy
busted knuckles
 
1970heavychevy's Avatar
 
Join Date: Oct 2008
Location: Kennesaw, Georgia
Posts: 92
Re: What are these holes for?

***Edited by Moderator****

You may only discusss sales or want to buys in the classifieds area of the board. To make a new post there you must be a subscribing member.

Last edited by Palf70Step; 10-29-2008 at 12:21 PM. Reason: For Sale Query
1970heavychevy is offline   Reply With Quote
Old 10-29-2008, 12:46 PM   #10
1970heavychevy
busted knuckles
 
1970heavychevy's Avatar
 
Join Date: Oct 2008
Location: Kennesaw, Georgia
Posts: 92
Re: What are these holes for?

Sorry about that. It was more of a joke, needed the lol.
1970heavychevy is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:32 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com