dont know about the particular years but i think the 3L do have extra drains in the head. Maybe Demon will chime in an let us know. I think he has said something about the heads and the extra drain backs before.

98.5 Black SE ATX S&B filter, SVT MAF, optimized SVT TB, mesh grille, removed orange reflectors, painted rear reflector, gutted pre-cats, optimized SVT LIM, 19lb injectors, resonator removed cant afford an svt but lookin for 1 in nc