Quote from: x66 714 on January 12, 2026, 08:43:31 PMThere was 4 ways to buy a 1968 Z/28.
Z28 400.25 base
Z28-2 479.25 air plenum
Z28-3 779.40 headers
Z28-4 858.40 Both of above
It's my understanding that the bottom 3 were not available for the entire year.
It's also my understanding that that these pieces were furnished loosely.
Since all 1968 Z/28 came with smog, it was up to the owner to install them. Both affected the smog system.
Somebody can correct me if my information isn't correct.....Joe
That is correct. After Jan. 68 those options were not available. So only Aug - Dec 67 would have had those option opportunities. Dealer installed air plenum and most were done with drills and saws.
Ex. Below:
