1997-2008 FORD 4.2L OHV V6 F150 E150 E250 HYD. ROLLER LIFTERS (SET OF 12). 1997-2005 Ford E150 / E250. NOTES : THESE ARE ROLLER LIFTERS FOR USE W/ ROLLER CAMSHAFTS. ROLLER LIFTERS. These Enginetech Roller Lifters improve performance by reducing internal engine friction.