Models: 7.4L, 454 (330, 335hp GEN IV), 454 High Output King Cobra (370hp GEN IV, 330hp GEN V), 454 King Cobra (275, 295, 310hp GEN IV, 295, 310 GEN V), 8.2L, 502 King Cobra (375hp Gen IV, 375 hp Gen V)
Gen IV with 2 piece rear main bearing seal & 4 piece oil pan gasket.