American Motors V8 290-401
Advertised Duration: 277/281
Duration @ .050": 242/246
Valve Lift w/1.60 Rockers: .544/.549
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .022/.022
2800-6200. Street/strip, needs 10.0+ CR, 2500+ stall & gears.

American Motors V8 290-401
Advertised Duration: 276/280
Duration @ .050": 248/252
Valve Lift w/1.60 Rockers: .571/.576
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .016/.016
3000-6500. Hot street/bracket, powerful, through entire rpm range, 10.0:1+ CR, 3000+ stall.

American Motors V8 290-401
Advertised Duration: 289/295
Duration @ .050": 254/260
Valve Lift w/1.60 Rockers: .587/.592
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .022/.022
3500-7000. Rough idle, great mid range & top end performer, 3200+ stall & gears needed.

American Motors V8 290-401
Custom Grind