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engine swap smog question

If they can tell is swapped, its not even legal i don't think. You have to go newer/larger with swaps in my understanding for them to be legal.

You also much retain all stock smog equip. So no, your idea won't work. You'd have to swap the 84 smog equip to the 69 to get it even close to passing.
 
Emissions must meet the current year or newer. Lots of complexities beyond that, but to be legal, you can't ever go backwards in emissions, only forwards.

An '84 must meet '84 or newer emissions requirements, which includes all of the components.

In other words, the vehicle is smogged/tested/inspected based on vehicle year, not equipment installed.
 
if i put all my smog stuff on the 69' motor it will be fine right? do they run numbers from the block?
 
You can't just drop a 69 motor in there ........You can use the motor as a core and hope the front pad gets wiped when they machine the deck flat .

Lots of various year motors end up as cores at rebuilders who send them out as stock replacements . Those should be smog legal as its just the longblock and not a swap . Don't quote me on that , but I assume you buy a replacement motor over the counter its legal regardless what number was on it before it was machined .

A stock truck 350 replacement for your year has a passenger side dipstick , if I worked at smog , I would tell right away if it was drivers side dipstick .
 
well what we did is we took everything off the 69' but the black, heads, picstion, and the internals. them we put on all my stuff, like water pump, all the pulleys, intake manafoild, carb, exhaust manafoilds.
 
I just did the same swap in my 84'. I'm hoping they don't notice the dipstick.
 
yea, it should blow cleander cuz this 69' block was amazingly clean inside!! my buddies dad ownes a smog shop, if i just tell him what we did he will just look the other way. you dont have to enter any block numbers in the smog machine do you?
 
You guys have a much higher opinion on the emissions techs than I have (maybe the difference between AZ and CA?). The techs don't even open the hood on my 72 K5, and even if they did I think they would only look to make sure the air filter is on. I have been passed with "off road only" carbs on an 85 Toy PU and a 70 VW "Baja" bug. Since more and more cars are OBD the techs are becoming "cord pluggers" who don't need to know anything about the cars they are inspecting, IMHO.

On second thought, you guys in CA have independent shops that do the work? In AZ we go to large state owned (prob private contracted) drive through emissions stations and wait in line for 15 minutes.
 

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