Chevrolet Small Block 262-400 Advertised Duration: 297/307 Duration @ .050": 243/253 Valve Lift w/1.50 Rockers: .508/.530 Lobe Separation Angle: 112 Intake Centerline: 108 Valve Lash: Hyd./Hyd. 2800-6600. Performance/competition, works well with small blower or NOS.
Chevrolet Small Block 262-400 Advertised Duration: 297/307 Duration @ .050": 243/253 Valve Lift w/1.50 Rockers: .508/.530 Lobe Separation Angle: 112 Intake Centerline: 108 Valve Lash: Hyd./Hyd. 2800-6600. Small Base Circle, Performance/competition, works well with small blower or NOS.