1976 914 LS3 Emissions Question, 1976 with LS3 Emissions Options

[Gearup]

Good evening gentleman. For those people on here with an LS3 and in a state with California type emission laws, have you been able to get your car past emissions/inspections? I live in CO and they are very similar. Also, any who are running catalytic converters and your source of purchase. Appreciate any input. I have a new LS3 and am curious if I will be able to get it through.

Thanks!
Brett

[technicalninja]

Here in Texas in "non-attainment" counties (and any county touching the non-attainment county) the OBD2 is connected to the state mainframe and a Chevrolet engine in a BMW will NOT pass.

The laws usually reads "all originally equipped emission devices in their original placement."

If the computer has been flashed with anything but the OEM programming your blown so if the immobilizer has been removed (super common for GM stuff installed in something else) your blown.

In the Miata world the California guys swap in the COMPLETE original drivetrain every two years. After the smog they swap the built motor/turbo system back in...

Major PIA!

I don't know exactly how Colorado laws work but my advice is check with a classic car organization near you and find out how others are "skinning the cat".

I moved to a county here in Texas that does not touch a smog county.
We have basically no emissions check every year, just a Safety inspection...

A significant number of classic/modified cars down here run Montana plates through Montana LLCs the owners have set up. No sales tax and no inspections at all...

There is almost always a work around. Checking with locals who have figured out HOW to do it there is the easiest path IMO.