[85SBC400]

Cam Style: Mechanical flat tappet
Basic Operating RPM Range: 4,000-7,000
Intake Duration at 050 inch Lift: 252
Exhaust Duration at 050 inch Lift: 260
Duration at 050 inch Lift: 252 int./260 exh.
Advertised Intake Duration: 288
Advertised Exhaust Duration: 296
Advertised Duration: 288 int./296 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.536 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.554 in.
Valve Lift with Factory Rocker Arm Ratio: 0.536 int./0.554 exh. lift
Lobe Separation (degrees): 106