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 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-17-2024, 04:14 PM   #1
pound41
Registered User
 
Join Date: Dec 2002
Location: Northern Virginia
Posts: 1,268
1980 K10 Keep air pump or delete

Hello
I have a 1980 K10 350 4spd Ac truck.All my others are pre air pump trucks. I need to replace the carb. Wondering if I should eliminate the Air pump and all that goes with it. There's vacuum lines going every where. Thanks for your thoughts
pound41 is offline   Reply With Quote
Old 03-17-2024, 06:38 PM   #2
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 13,732
Re: 1980 K10 Keep air pump or delete

Do you have to pass a visual inspection come smog test time.

What carb are you going to use?
geezer#99 is online now   Reply With Quote
Old 03-17-2024, 07:05 PM   #3
pound41
Registered User
 
Join Date: Dec 2002
Location: Northern Virginia
Posts: 1,268
Re: 1980 K10 Keep air pump or delete

Nope don't have to pass any emission tests. Thinking of just a quadrajet with electric choke.
pound41 is offline   Reply With Quote
Old 03-17-2024, 07:45 PM   #4
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 13,732
Re: 1980 K10 Keep air pump or delete

Not a lot to be gained ripping stuff out. Looks better maybe but might cost you 10 hp at 5 grand.
geezer#99 is online now   Reply With Quote
Old 03-17-2024, 08:12 PM   #5
smupser
Active Member
 
Join Date: Jan 2008
Location: Escondido, CA
Posts: 167
Re: 1980 K10 Keep air pump or delete

Quote:
Originally Posted by geezer#99 View Post
Not a lot to be gained ripping stuff out. Looks better maybe but might cost you 10 hp at 5 grand.
How exactly is he going to be losing horsepower by ripping the air injection off??? injection does nothing for performance. And if anything, it’s one less accessory that you’re driving, which could gain power.
smupser is offline   Reply With Quote
Old 03-17-2024, 08:25 PM   #6
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 13,732
Re: 1980 K10 Keep air pump or delete

Well gosh darn I worded that wrong!
Would you like me to try again?
geezer#99 is online now   Reply With Quote
Old 03-18-2024, 05:48 PM   #7
Dead Parrot
Registered User
 
Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,611
Re: 1980 K10 Keep air pump or delete

Delete. You won't unlock 50 hidden HP but at this age, the air pump could fail at any time. Might as well pull everything during the carb swap. Check the threads on the plug sizes needed for the manifold holes.
Dead Parrot is offline   Reply With Quote
Old 03-18-2024, 06:28 PM   #8
pound41
Registered User
 
Join Date: Dec 2002
Location: Northern Virginia
Posts: 1,268
Re: 1980 K10 Keep air pump or delete

Thanks I know it won't change HP much one way or the other. I was more concerned with having to chase leaks in all the vacuum lines and plastic T connectors it has a lot. I didn't want to replace all of those.
pound41 is offline   Reply With Quote
Old 03-18-2024, 06:38 PM   #9
Shifty One
Registered User
 
Shifty One's Avatar
 
Join Date: Dec 2014
Location: Tucson, AZ
Posts: 743
Re: 1980 K10 Keep air pump or delete

Save the parts.....take a look at what a.i.r. pumps go for now, assuming you can find them, that is.
__________________
1987 V20 farm-hand rescue

1998 C2500 lot-rot rescue
Shifty One is offline   Reply With Quote
Old 03-18-2024, 06:49 PM   #10
jerry moss
Born Psycho
 
jerry moss's Avatar
 
Join Date: Feb 2001
Location: brentwood,cal,usa
Posts: 4,939
Smile Re: 1980 K10 Keep air pump or delete

just don't bring the truck to "the people's republic of commifornia" and try to smog it, LOL. by the way I just sent in my renewal for my 80 K20 this morning $304.00
as someone else said take it off but don't throw it away.
__________________
jerry moss
72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD
69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies.
73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog.
77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW
BRENTWOOD,CALIFORNIA
jerry moss 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 01:06 AM.


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