Ford 221-302 1962-2001
Adv. Duration: 280/289
Duration @ .050": 204/214
Lift: .449/.473

Lobe Separation: 112 LC
Includes Lifters: No
1500-4000. Good idle, torque, power.

Ford 221-302 1962-2001
Adv. Duration: 288/300
Duration @ .050": 214/224
Lift: .473/.497

Lobe Separation: 112 LC
Includes Lifters: No
2000-4800. Good mid-range HP.

Ford 221-302 1962-2001
Adv. Duration: 300/306
Duration @ .050": 224/234
Lift: .497/.520

Lobe Separation: 112 LC
Includes Lifters: No
2000-4800. Lopey idle, hot street/strip.

Ford 221-302 1962-2001
Adv. Duration: 272/272
Duration @ .050": 216/216
Lift: .484/.484

Lobe Separation: 110 LC
Includes Lifters: No
2000-4800. Low end & mid-range torque, performance/off road.