Basic Operating RPM Range 1,000-5,500
Intake Duration at 050 inch Lift 213
Exhaust Duration at 050 inch Lift 219
Duration at 050 inch Lift 213 int./219 exh.
Advertised Intake Duration 256
Advertised Exhaust Duration 262
Advertised Duration 256 int./262 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.483 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.499 in.
Valve Lift with Factory Rocker Arm Ratio 0.483 int./0.499 exh. lift
Lobe Separation (degrees) 112