[demonspeed]

Is it worth doing because it's truly a better design, or is it worth doing because people have the perception that it's better? There is a reason they stick with OHV -- and a reason why OHV works so well. More complexity just for the sake of complexity does not mean it's "better."

Further, people act so haughty regarding how "old" OHV is, yet they forget Ford's had OHC in the Mustang for just as long as Chevy's had OHV in the Camaro. To be honest, I think the only people who get bent out of shape with the issue are those that don't understand it.

At the end of the day, it's which car is easier to work on, gets the best mileage, and does it fastest, quickest, and most efficient. If that's a OHV engine then so be it.

edit: Keep in mind that the LT5 isn't necessarily an engine "program" so much as it was a unique product. IIRC, it was still a gen I small block with some tweaks to adapt DOHC. It obviously lasted for only one specific trim for one specific vehicle.

The Northstar program, on the other hand, was GM's venture toward OHC V8 in mass produced form. Granted, the technology mostly stayed with Cadillac (Olds received the 4.0; Buick/Pontiac would receive an occasional 4.6), but again, there is a reason why they have shelved that program after it existed for two decades.