4-Door with 340 from the factory?

I spent 35 yrs in the car biz and can tell you that if an exec , fleet or a big dealer wants something special he can get it . Maybe not so much today but back prior to the 90s regulations were not as strictly adhered to . And the production lines were more flexible back then . I spent Thanksgiving with a retired Chrysler plant manager ( or in management I should say) that gave me a lot of interesting info . Like when an employee ordered car went down the line it got special attention .
I have heard credible stories of W2 heads on police pursuit pkgs . W2s on a Little Red Express owned by Shepard ( IIRC ) and I parted out a 69 Plymouth wagon equipped exactly like a Road Runner right down to the aircleaner , manifolds , carb , windage tray ,trany and 3.23 posi ... still have the fender tag .