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04-26-2015, 04:17 PM
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#1 |
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Registered User
Join Date: Dec 2012
Location: Temple City
Posts: 3,629
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When did C30's get cats?
I have to sell my K20 down the road because I need something family friendly. So I am working on picking up a crew cab dually. Since I can not stomach buying a new truck I will build my version with out things that annoy me.
When did cats become a requirement on a California truck. I saw a ad where it was mentioned 1984 last year of no cats. I am looking at earlier the 80 to keep smog issues down, or get a TBI version then go for LS swap. There is a kid at work who wants it bad since the running gear is new, and I can not pass up his offer. So I want to act quickly. Posted via Mobile Device |
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04-26-2015, 05:22 PM
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#2 |
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Senior Member
 
Join Date: May 2001
Location: Independence MO.
Posts: 7,708
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Re: When did C30's get cats?
[QUOTE=Ziegelsteinfaust;7149286]I have to sell my K20 down the road because I need something family friendly. So I am working on picking up a crew cab dually. Since I can not stomach buying a new truck I will build my version with out things that annoy me.
When did cats become a requirement on a California truck. I saw a ad where it was mentioned 1984 last year of no cats. I am looking at earlier the 80 to keep smog issues down, or get a TBI version then go for LS swap. There is a kid at work who wants it bad since the running gear is new, and I can not pass up his offer. So I want to act quickly. Posted via Mobile Device[/QUOTE My '87 is single exhaust with a cat and unleaded gas, and my 86 is a dual exhaust no cat and regular gas. Both are K/30's with 454's
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72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale |
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04-26-2015, 10:09 PM
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#3 |
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Registered User
Join Date: Apr 2014
Location: Bloomington Indiana
Posts: 1,041
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Re: When did C30's get cats?
Federal: cats went on the C10s in 1975 (under 6001# GVW).
State: cats went on all pickups in California in 1978. Federal: cats went on all trucks under 8501# GVW in 1979. This was all C/K/10/20/30.
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Rich Weyand 1978 K10 RCSB DD. |
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04-26-2015, 11:17 PM
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#4 |
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At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,257
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Re: When did C30's get cats?
We had an 86 federal c30 without cats
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" That didnt make it any newer " " Dont antique the equipment " |
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04-26-2015, 11:22 PM
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#5 |
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Registered User
Join Date: Sep 2014
Location: Texas
Posts: 215
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Re: When did C30's get cats?
'85 C-20 Crew with no factory cat. I can't remember when leaded gas was removed from the pumps. My '87 C-30 has one.
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04-26-2015, 11:45 PM
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#6 | |
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Registered User
Join Date: Feb 2015
Location: Santa Rosa, Ca.
Posts: 539
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Re: When did C30's get cats?
Quote:
Calif. also required cats on `1975 up, under 8500 GVWs, also with a few exceptions. I know I own one of those exceptions: 75 to 77 454 equipped C/10s did not have cats whether they were Calif or federal. 1978 was the first year for cats on California 454 C/10s. 1978 Federal 454 C/10's did not have them.
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1977 Chevrolet C/10 Silverado. Step-Side, Factory 454, TH400, 3.73 Posi 12 Bolt. 1975 Chevrolet El Camino. 350, TH400, 3.08 Posi 10 Bolt. |
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04-27-2015, 03:43 AM
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#7 | |
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Registered User
Join Date: Aug 2009
Location: S.C.
Posts: 1,593
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Re: When did C30's get cats?
Quote:
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'86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold  )I'm kinda like duct tape- no real purpose, but handy to have around. |
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04-27-2015, 06:55 AM
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#8 |
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Registered User
Join Date: Jan 2003
Location: Safford,AZ
Posts: 3,625
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Re: When did C30's get cats?
I just read the 76-80 big 10 raised their GVW not to have cats on 1/2 ton trucks.
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1969  307, t3501950 Chevy Wagon 1978 Big 10 1967 C10, 250,3-OTT |
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04-27-2015, 09:05 PM
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#9 |
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Registered User
Join Date: Dec 2012
Location: Temple City
Posts: 3,629
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Re: When did C30's get cats?
I have found the truck I want. It is a fully loaded 1984 diesel titled truck. Someone converted it to a SBC, and the guy thinks it is a 305.
Either way it is a good base for a clean up, and a slow build as money + time converge. |
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