American Motors V8 290-401
Cam Series: Street Force™
Advertised Duration: 259/269
Duration @ .050": 205/215
Valve Lift w/1.60 Rockers: .448/.474
Lobe Separation Angle: 112
Intake Centerline: 108
Valve Lash: Hyd./Hyd.
800-4800. Street Force™ 1, Good idle, mild street performance, strong low end torque.

American Motors V8 290-401
Cam Series: Street Force™
Advertised Duration: 269/279
Duration @ .050": 215/225
Valve Lift w/1.60 Rockers: .474/.496
Lobe Separation Angle: 112
Intake Centerline: 108
Valve Lash: Hyd./Hyd.
1200-5200. Street Force™ 2, Good idle & throttle response, needs 4 barrel & good exhaust.

American Motors V8 290-401
Advertised Duration: 257/269
Duration @ .050": 203/215
Valve Lift w/1.60 Rockers: .443/.475
Lobe Separation Angle: 110
Intake Centerline: 106
Valve Lash: Hyd./Hyd.
800-4800. Smooth idle, improved low end, high vacuum, good fuel economy.

American Motors V8 290-401
Advertised Duration: 269/269
Duration @ .050": 215/215
Valve Lift w/1.60 Rockers: .475/.475
Lobe Separation Angle: 111
Intake Centerline: 107
Valve Lash: Hyd./Hyd.
1200-5200. Good idle, street, off-road, towing, good fuel efficiency.

American Motors V8 290-401
Advertised Duration: 261/267
Duration @ .050": 214/220
Valve Lift w/1.60 Rockers: .527/.540
Lobe Separation Angle: 110
Intake Centerline: 106
Valve Lash: Hyd./Hyd.
1400-5400. Good idle, strong street performance.

American Motors V8 290-401
Advertised Duration: 267/267
Duration @ .050": 220/220
Valve Lift w/1.60 Rockers: .540/.540
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: Hyd./Hyd.
1800-5800. Classic performance idle, strong mid-range torque & power.

American Motors V8 290-401
Advertised Duration: 277/277
Duration @ .050": 223/223
Valve Lift w/1.60 Rockers: .480/.480
Lobe Separation Angle: 114
Intake Centerline: 110
Valve Lash: Hyd./Hyd.
1500-5500. Strong low & mid range torque & horsepower.

American Motors V8 290-401
Advertised Duration: 289/297
Duration @ .050": 235/243
Valve Lift w/1.60 Rockers: .520/.541
Lobe Separation Angle: 112
Intake Centerline: 107
Valve Lash: Hyd./Hyd.
2200-6200. Strong low & mid-range torque & horsepower, manual or auto with stall.

American Motors V8 290-401
Advertised Duration: 291/299
Duration @ .050": 244/252
Valve Lift w/1.60 Rockers: .604/.629
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: Hyd./Hyd.
2600-5400. Rough idle, better with 390 & larger ci, needs 2000+ stall and gears.