If you go for a roller motor would the vehicle have a higher resale. I guess it depends who your buyer is and what they expect from the powerplant. Someone who knows the benefits of a roller block would buy it opposed to a flat tappet. If my engine was a roller i dont think my car would be worth much more even if it could sustain higher revs for longer. What sort of buyer would that be..???????More questions than answers.
A Jensen Interceptor that appears every year here for our annual Targa event has a non-roller engine and comes back every year with little more than an oil change .