The RV8 is by no means good but I'm not sure its worth it to dump $$$ into making the switch to another engine. Given how cheap you can pick up RV8 parts for I plan to build up a 4.6 to drop in whenever mine eventually blows up. I would probably be more optimistic if mine just hadn't shut itself off while rolling along at 70 mph (crank sensor shit itself) leaving me stranded on the side of the I-75 in Atlanta.