Ford Modular V8 4.6L DOHO 4-Valve '93-Present
Advertised Duration: 247/254
Duration @ .050": 210/216
Valve Lift w/1.825 Rockers: .450/.450
Lobe Separation Angle: 114
Intake Centerline: 112
Valve Lash: Hyd./Hyd.
800-6400. Smooth idle, high low end torque, can use stock converter.

Ford Modular V8 4.6L DOHO 4-Valve '93-Present
Advertised Duration: 259/259
Duration @ .050": 222/222
Valve Lift w/1.825 Rockers: .450/.450
Lobe Separation Angle: 114
Intake Centerline: 112
Valve Lash: Hyd./Hyd.
1200-6600. Mild idle, street performance, excellent low to mid range torque.

Ford Modular V8 4.6L DOHO 4-Valve '93-Present
Advertised Duration: 265/265
Duration @ .050": 228/228
Valve Lift w/1.825 Rockers: .475/.475
Lobe Separation Angle: 114
Intake Centerline: 112
Valve Lash: Hyd./Hyd.
1500-6800. Lopey idle, hot street, strong mid range with top end increase. 2000+ stall & gears.

Ford Modular V8 4.6L DOHO 4-Valve '93-Present
Advertised Duration: 265/270
Duration @ .050": 236/234
Valve Lift w/1.825 Rockers: .475/.475
Lobe Separation Angle: 114
Intake Centerline: 112
Valve Lash: Hyd./Hyd.
1800-7000. Rough idle, street/strip, needs 2400+ stall, larger throttle body & better exhaust.

Ford Modular V8 4.6L DOHO 4-Valve '93-Present
Advertised Duration: 274/281
Duration @ .050": 236/242
Valve Lift w/1.825 Rockers: .475/.475
Lobe Separation Angle: 114
Intake Centerline: 112
Valve Lash: Hyd./Hyd.
2000-7000. Pro street/strip with supercharger. Need good parts all around. 2500+ stall.