5.7 HEMI Vs. 408 Stroker

Ok.. one word of advise though.. If you are wanting to spin the car to 7K you need to look into getting a new valve train...The stock rockers will flex under that amount of rpm's ... if u are running stock 6.1 springs or pac springs will walk... The good news is that Arrington is coming out with new roller rockers that allow a duel behive style spring with custom retainers....