Engine swaps and the DMV
CA emissions inspection is currently not required for 1975 and older, the 30 year rule is currently not applicable (the emission equip is required, just not inspected, so don't throw it away). Technically, in CA, the emissions is determined by the newest of 2 areas - the year of the car or the year of the engine. Not many people are going to tell the CA DMV that they have an LS1 in their 59 Corvette, since the Corvette is not inspected. On the other hand, if you put a 1962 283 FI engine in a 2006 Corvette (to avoid emission insp), the CA DMV would require the 283 to meet 2006 emission standards and be inspected every 2 years.
C Ya, Joseph Rock
Frankenstein 59
P.S. CA also does not test emissions for the first 5 years of new cars life, so modify away but save the parts!