Smog Pumps

Reply Subscribe

Thread Tools

Search this Thread

Apr 29, 2017 | 02:38 PM

576667G

Thread Starter

Instructor

Joined: Oct 2016

Posts: 212

Likes: 17

Smog Pumps

Did all C-3's come with smog pumps or only certain years? When did they start and stop? Can't get correct answer! Thanks
576667G

Apr 29, 2017 | 02:48 PM

Alan 71

Team Owner

Joined: Sep 2006

Posts: 31,267

Likes: 4,362

From: Westminster Maryland

Hi 5,
No.
The use of the AIR system typically depended on the model year, the engine installed, and where the car was to be delivered.
The chart of which years/engines had AIR pumps is long… you might be better asking about what years/engines in particular you're interested in.
Regards,
Alan

Apr 29, 2017 | 11:50 PM

bearphoto

Safety Car

Joined: Dec 2009

Posts: 4,194

Likes: 305

From: Lake Havasu City Arizona

SoCal Events Coordinator

St. Jude Donor '12

Well if I can jump in, how about a 1981 L-81 350. I have this car being delivered to me next week from Texas. Most of the chevy smog pumps of this era seem to be right in front between the fan blade and the thermostat housing. I don't see one in that location in the pics of the car being delivered.

Apr 30, 2017 | 07:10 AM

Alan 71

Team Owner

Joined: Sep 2006

Posts: 31,267

Likes: 4,362

From: Westminster Maryland

Hi Bp,
1981 engines originally had an A.I.R. pump as part of their emissions equipment.
Regards,
Alan

Apr 30, 2017 | 07:14 AM

crawfish333

Melting Slicks

Joined: Aug 2004

Posts: 3,151

Likes: 294

From: Opelousas, Lousiana

CI 6-7 & 9 Veteran

I believe smog pumps were required on all 1981 cars, along with Cats. Some people removed that stuff to increase performance though.

Apr 30, 2017 | 10:42 AM

Easy Mike

Team Owner

Joined: Jun 2000

Posts: 38,923

Likes: 1,481

From: Southbound

Cruise-In II Veteran

FWIW: California cars began getting smog pumps in the mid-60s.

Apr 30, 2017 | 11:43 AM

Alan 71

Team Owner

Joined: Sep 2006

Posts: 31,267

Likes: 4,362

From: Westminster Maryland

Hi,
I first see mention of the A.I.R system listed among the options for 1966 cars.
It was K-19 and required (?) for cars being delivered in California.
Regards,
Alan

Apr 30, 2017 | 09:00 PM

70L46Conv4Sp

Instructor

Joined: Aug 2002

Posts: 197

Likes: 22

From: Upstate SC

I know the 1970 L46 did not have the AIR pump. I'll look in a few of my reference books and see if any of them tell which others don't have the pump.

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

10 Ugly Corvettes That We Still Kinda Love

Joe Kucinski

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

Brett Foote

10 Things Every Corvette Owner Needs (2026 Edition)

Michael S. Palmer

8 Most "Only Corvette Owners Understand" Quirks and Problems

Pouria Savadkouei

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

Joe Kucinski

How Much Horsepower Every Corvette Engine "LOST" in 1972

Joe Kucinski

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

Michael S. Palmer

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

Joe Kucinski

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

Joe Kucinski

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

Verdad Gallardo

Apr 30, 2017 | 10:23 PM

ed427vette

Melting Slicks

Joined: Jul 2006

Posts: 3,103

Likes: 802

From: Massapequa Park NY

I can add this, in 1969 all Corvettes had the smog pumps, every one, even the L88.

May 1, 2017 | 10:31 PM

#10

MISTERZ06

Racer

Joined: Oct 2016

Posts: 336

Likes: 69

From: Staten Island New York

Quote:

Originally Posted by ed427vette

I can add this, in 1969 all Corvettes had the smog pumps, every one, even the L88.

1969 Chevy Corvette l-88

1960's L-79

........................................ ....tom

Attached Images

Last edited by MISTERZ06; May 1, 2017 at 10:35 PM. Reason: gramar

May 1, 2017 | 11:16 PM

#11

LS4 PILOT

Melting Slicks

Joined: Jul 2009

Posts: 2,091

Likes: 40

My 74 454 has original smog system ....I'm not telling if it works

I think all factory C3 BB have A.I.R. System .

I have seen some years SB that did not ....seems these were L48 s

May 2, 2017 | 07:51 AM

#12

Don Rickles

Race Director

Joined: Jun 2005

Posts: 10,189

Likes: 206

2018 Corvette of Year Finalist

2017 C3 of Year

Quote:

Originally Posted by LS4 PILOT

My 74 454 has original smog system ....I'm not telling if it works

I think all factory C3 BB have A.I.R. System .

I have seen some years SB that did not ....seems these were L48 s

Nope, A.I.R. system were installed on "High Performance" engines. I can say for sure in '71 the 454 cu. in. 365 hp motor was NOT equipped with the early emission control device.

May 2, 2017 | 07:51 AM

#13

RonR80

Melting Slicks

Joined: Apr 2008

Posts: 2,625

Likes: 242

From: Russell Ontario

St. Jude Donor '09

My 1980 had the AIR pump original from GM ,

May 2, 2017 | 01:26 PM

#14

Snoopysvet

Le Mans Master

Joined: Oct 2006

Posts: 8,940

Likes: 35

From: El Cajon California

My 1978 L-48 federal emissions car had no smog pump

May 2, 2017 | 04:54 PM

#15

576667G

Thread Starter

Instructor

Joined: Oct 2016

Posts: 212

Likes: 17

Thanks guys!.....appreciate the input!

May 2, 2017 | 05:50 PM

#16

NewbVetteGuy

Melting Slicks

Joined: Jun 2016

Posts: 2,979

Likes: 332

From: Woodinville WA

If anyone wants / needs an air pump for their C3, I've got a VERY complete one in very good condition (13.9k miles on the car). I've got the air pump, pulley, bracket, stock manifolds with the recirc fittings (whatever they're called, can't remember), etc.. just sitting in my garage. (Off of my 79.)

I'd love to find it a new home. ;-)

Adam

Last edited by NewbVetteGuy; May 2, 2017 at 05:51 PM.

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last

Forum Jump