1968 GT350 motor in question

[Coralsnake]

Thanks, corrected. The point is still made, its silly to assume its a Shelby 302 based on what was presented.

[98SVT - was 06GT]

It could be a rare taxicab engine.

[gt350shelb]

Lets make a list of cars a random 1968 model year 302 showing up in 2021 could have came in:

Any Ford truck, including vans
Torino
Fairlaine
Cougar
Ltd
Falcon
Galaxie And XL
Country Squire
Thunderbird
Bronco
Mustang

And lastly but likely the least possibility is...
Shelby

and industrial air compressors

[shelbydoug]

If you need an engine for your 68 GT350, this one is worth considerably more then $50. 

[KR500]

Don't forget about Mercury's

[pbf777]

Don't forget about Mercury's

     Both in and out of the water!     

and industrial air compressors

     Do the ones running on just one bank of four cylinders and using the other bank of four as the air compressor count?   

     Scott.

[mark p]

Lets make a list of cars a random 1968 model year 302 showing up in 2021 could have came in:

Any Ford truck, including vans
Torino
Fairlaine
Cougar
Ltd
Falcon
Galaxie And XL
Country Squire
Thunderbird
Bronco
Mustang

And lastly but likely the least possibility is...
Shelby

and industrial air compressors

and boats