Voodoo Hydraulic Roller Swinging Follower - Ford 4.6L & 5.4L Modular 3 Valve 264/280

Hydraulic Roller Swinging Follower Cam Set. Street blower cams work with stock springs and stock tune. Great mid range and top end. Like a 3.73 gear and a 2500 stall. Need phaser mods. Great sound. ;Advertised Duration (Int/Exh): 264/280 ;Duration @ .050 (Int/Exh): 225/241 ;Gross Valve Lift (Int/Exh): .450/.450 ;LSA/ICL: 116/102 ;Valve Lash (Int/Exh): Hyd/Hyd ;RPM Range: 800-6500 ;Includes: Cams Only