There was a diesel one for sale not long ago on Craigs list, 50 mpg, reasonable was sitting for 10 years. I think it was a Isusu OEM engine, rare. There was also a diesel ford escort. I don't know why anyone would spend the time to put a Buick v6 in a ****vette, I can see doing it to a Fiero. My view it would be easier to ecomod a saturn sc1, at least it doesn't show rust.
Pretty car (not) a little square in front could use a duck bill. Hood scoop and ornament too. Rear spoiler wind should be fully functional, to keep this mean machine on stuck to the road.
1982 chevette 40to60mpg