Chevrolet Small Block 262-400 Advertised Duration: 280/288 Duration @ .050": 252/260 Valve Lift w/1.50 Rockers: .540/.560 Lobe Separation Angle: 106 Intake Centerline: 102 Valve Lash: .016/.016 3000-7200. Small Base Circle, Great mid & top end oval track tight lash cam, good on dirt or asphalt.
Chevrolet SB 262-400 1955-1998 Adv. Duration: 287/299 Duration @ .050": 252/261 Lift: .530/.525 Lobe Separation: 106 LC 3000-6800 Small Base Circle, Best on 3/8 to 1/2 mile fast tracks. Super mid & upper RPM cam.