V8-287 4.7l Sohc

The 4.7 came out in 99 (I think) and is still inuse today in rams & Durango's & Dakots. I think in the new Daks its 310 hp
It's a sohc motor. it started as a 240hp. It has aluminum heads and a cast iron block. It realpsced the old 318

Not sure of perf parts .