Ford Big Block 429-460 1968-1995
Adv. Duration: 272/278
Duration @ .050": 219/225
Valve Lift: .588/.577
Lobe Separation: 110
Included Lifters: 91169 Hyd. Roller
1600-5600. Mild idle, street performance, good low to mid-range torque & power.

Ford Big Block 429-460 1968-1995
Adv. Duration: 282/286
Duration @ .050": 229/233
Valve Lift: .600/.594
Lobe Separation: 110
Included Lifters: 91169 Hyd. Roller
2200-6200. Choppy idle, high performance street. Needs good intake, heads 9.0:1 CR & 2200+.

Ford Big Block 429-460 1968-1995
Adv. Duration: 288/294
Duration @ .050": 235/241
Valve Lift: .611/.611
Lobe Separation: 110
Included Lifters: 91169 Hyd. Roller
2400-6400. Good idle, great mid-range performance. 9.0:1+ CR, 2400+ stall & 3.73 or lower gears.

Ford Big Block 429-460 1968-1995
Adv. Duration: 300/300
Duration @ .050": 247/247
Valve Lift: .623/.623
Lobe Separation: 110 LC

Included Lifters: 91169 Hyd. Roller
3000-6800. Lopey idle, street/strip, good mid-range horsepower. Best with 3500+ stall.

Ford Big Block 429-460 1968-1995
Adv. Duration: 302/308
Duration @ .050": 249/255
Valve Lift: .652/.652
Lobe Separation: 110
Included Lifters: 91169 Hyd. Roller
3200-7000. Rough idle, hot street/bracket, good torque & upper mid-range. 11.5:1+, 3800+ stall.