Quote: Smog stuff goes by body year not engine. If you put an older non smog engine in a later smog car you need to install smog equipment. If you go the other way you can remove the smog stuff.
Not necessarily. I had a '73 Cuda with a '72 340 in it and then moved to Cali. I had to take the car to a referee station to have it smogged the first time. They classified my car as a '72 for smog purposes and then told me to take off my econo 650 Holley... and put on a big 750 Double Pumper . I also had to put all of the factory smog controls back as if it was a '72 model... I put it all back but it wasn't functional thanks to some broken off golf tees in the vacuum lines.
A guy came in to the referee station with a hot rodded Camaro... a car originally from California... he was told to put it ALL back stock. The guy had the look on his face like his dog just died.
. I also had to put all of the factory smog controls back as if it was a '72 model... I put it all back but it wasn't functional thanks to some broken off golf tees in the vacuum lines.