FK330-01: 1997-7/20/1997 SOHC 16 VALVE V-8. VIN L, M. TRUCKS, VANS, EXPEDITION, NAVIGATOR, EXCEPT LIGHTNING SERIES.; FK330-01A: 7/20/1997-1998 SOHC 16 VALVE VIN L, M. TRUCKS, VANS, EXPEDITION, NAVIGATOR. EXCEPT LIGHTNING SERIES; FK330-01B: 1999 ONLY SOHC 16 VALVE VIN L,M. TRUCKS F150,F250,EXPEDITION ONLY. NOT FOR NAVIGATOR, VANS OR LIGHTNING SERIES; FK330-01C: SOHC 16 VALVE. VIN L, M. VANS & F350 ONLY.; FK330-01D: SOHC 16 VALVE. VINL. NAVIGATOR ONLY.