Finding smog pump 1985 Chevy K20

• Oct 10, 2024

• #1

I

ihtblzr

Junior Member

Joined

Oct 9, 2024

Posts

14

Reaction score

3

Location

Ca

First Name

Monique

Truck Year

1985

Truck Model

K20

Engine Size

350

Update: We sold the vehicle out of state so not worrying anymore. I do like all the people on this site!!!!! Trying to find a smog pump and diverter valve for a 1985 Chevy 3/4 ton K20 350 to make smog legal in CA . Non computerized. I’m trying to help find for my husband so hope I asked for the right things. I have looked online and can’t find and junk yards around here don’t have. Any help appreciated

 

Last edited: Oct 19, 2024

• Oct 10, 2024

• #2

hoagster

Full Access Member

Joined

May 16, 2017

Posts

1,393

Reaction score

3,436

Location

California

First Name

Mike

Truck Year

1973, 2000

Truck Model

K10, 1500

Engine Size

5.3l

I may have some smog stuff for you! But it will be off a 1973!

 

• Oct 10, 2024

• #3

hoagster

Full Access Member

Joined

May 16, 2017

Posts

1,393

Reaction score

3,436

Location

California

First Name

Mike

Truck Year

1973, 2000

Truck Model

K10, 1500

Engine Size

5.3l

may not help hopefully someone else will chime in. Your truck should have a listing of what was installed, there is a sticker usually in the glove box, take a picture of it and post it.
you will get more answers. also post a picture of the engine bay and the truck. We all love pictures

 

• Oct 10, 2024

• #4

I

ihtblzr

Junior Member

Joined

Oct 9, 2024

Posts

14

Reaction score

3

Location

Ca

First Name

Monique

Truck Year

1985

Truck Model

K20

Engine Size

350

Are they inner changeable?

 

• Oct 10, 2024

• #5

hoagster

Full Access Member

Joined

May 16, 2017

Posts

1,393

Reaction score

3,436

Location

California

First Name

Mike

Truck Year

1973, 2000

Truck Model

K10, 1500

Engine Size

5.3l

Don't know and the brackets could be different!

 

• Oct 10, 2024

• #6

hoagster

Full Access Member

Joined

May 16, 2017

Posts

1,393

Reaction score

3,436

Location

California

First Name

Mike

Truck Year

1973, 2000

Truck Model

K10, 1500

Engine Size

5.3l

Mine would be for first year of that pump!

 

• Oct 10, 2024

• #7

I

ihtblzr

Junior Member

Joined

Oct 9, 2024

Posts

14

Reaction score

3

Location

Ca

First Name

Monique

Truck Year

1985

Truck Model

K20

Engine Size

350

Here’s a pic I have

 

Attachments

• 
  IMG_4695.jpeg

  147 KB · Views: 39
• 
  IMG_4741.jpeg

  96.3 KB · Views: 28

• Oct 10, 2024

• #8

Old60Driver

1983 K20 Silverado

Joined

May 17, 2020

Posts

245

Reaction score

306

Location

Houston

First Name

Michael

Truck Year

1983

Truck Model

K20 Silverado

Engine Size

350

I took the smog pump off of my '83. I'll see if I can dig it up, and get some pictures

 

• Oct 10, 2024

• #9

I

ihtblzr

Junior Member

Joined

Oct 9, 2024

Posts

14

Reaction score

3

Location

Ca

First Name

Monique

Truck Year

1985

Truck Model

K20

Engine Size

350

Thankyou

 

• Oct 10, 2024

• #10

fast 99

Full Access Member

Joined

Dec 31, 2021

Posts

2,029

Reaction score

2,938

Location

Spokane, Washington

First Name

Brian

Truck Year

81,85

Truck Model

K20

Engine Size

350

Be sure to check the one-way valves mounted on the air pump tubes. If those go bad exhaust will burn up or melt other items in the system.

 

• Oct 10, 2024

• #11

JD Miller

Full Access Member

Joined

Sep 30, 2024

Posts

196

Reaction score

399

Location

Goober Idaho

First Name

JD

Truck Year

1981

Truck Model

K20 silverado

Engine Size

350

I used to have to install the smog pump and exhaust header tubes every 2-3 years for registration smog and remove it again after I passed the test, when i lived in Commiefornia. Glad I moved to a free rural state, back to America, where we have No Smog tests

 

• Oct 10, 2024

• #12

I

ihtblzr

Junior Member

Joined

Oct 9, 2024

Posts

14

Reaction score

3

Location

Ca

First Name

Monique

Truck Year

1985

Truck Model

K20

Engine Size

350

Im trying to convince him to move. I agree with you.

 

• Oct 11, 2024

• #13

hoagster

Full Access Member

Joined

May 16, 2017

Posts

1,393

Reaction score

3,436

Location

California

First Name

Mike

Truck Year

1973, 2000

Truck Model

K10, 1500

Engine Size

5.3l

So I took some pictures, Like I said my truck is a 73, This is what I have. Hopefully some one will @Old60Driver @fast 99 will take a picture of there setup.

You must be registered for see images attach

You must be registered for see images attach

You must be registered for see images attach

Does he have everything else like the picture above? The tubes on the exhaust manifolds. All of this has been sitting in the barn collecting dust as you can see And spiders.
Hopefully someone will chime in with more guidance as to whether these will help you or not. If they will we'll figure out how to get them to you.

 

• Oct 11, 2024

• #14

I

ihtblzr

Junior Member

Joined

Oct 9, 2024

Posts

14

Reaction score

3

Location

Ca

First Name

Monique

Truck Year

1985

Truck Model

K20

Engine Size

350

My husband thinks it might not be the right one as the pulley looks larger. Will hopefully gets some input from the people you tagged and in meantime will do research into. I do appreciate you doing this. Update - looks like it may be right one as it has same number on the back as the number cardone shows on there’s(which they don’t have) . So worth a try and we are in N Ca so how to get and costs?

 

Last edited: Oct 11, 2024

• Oct 11, 2024

• #15

DoubleDingo

Full Access Member

Joined

Jul 3, 2012

Posts

11,254

Reaction score

17,192

Location

Right where I am

First Name

Bagoomba

Truck Year

1981

Truck Model

81-C20 Silverado Camper Special-TH400-4.10s

Engine Size

Carb'ed Vortec 350

Looks the same as what I have on my 81