the only 5.4 2v picvs you will find have the motor 6" above the stock hood. unless you blown them, the 5.4 2v is useless. 5.4 3v fits under the hood. do a search with my username. and finally 5.4 4v is a rare thing. few try it, and even fewer succeed. i do feel like i can get a 5.4 4v under the stock hood also, if i tried. i may never try.