Chevrolet Small Block 262-400 Advertised Duration: 293/297 Duration @ .050": 261/265 Valve Lift w/1.50 Rockers: .620/.620 Lobe Separation Angle: 106 Intake Centerline: 102 Valve Lash: .022/.022 4200-8000. Small Base Circle, Circle track, high torque, great 360 sprint on tacky tracks.
Chevrolet Small Block 262-400 Advertised Duration: 293/297 Duration @ .050": 261/265 Valve Lift w/1.50 Rockers: .620/.620 Lobe Separation Angle: 108 Intake Centerline: 104 Valve Lash: .022/.022 4200-8000. Small Base Circle, Broad range power with mid to upper end torque, 360 sprint dry slick or bracket.
Chevrolet Small Block 262-400 Advertised Duration: 295/303 Duration @ .050": 263/271 Valve Lift w/1.50 Rockers: .675/.625 Lobe Separation Angle: 106 Intake Centerline: 102 Valve Lash: .022/.022 4200-8200. Great in large cubic inch small block oval track late models.