Engine Family: Chevrolet GEN VI 454 and 502 c.i. 8 Cylinder (1996-1999)
RPM Operating Range: 1,900-5,600
Cam Type: Hydraulic Roller
Camshaft Series: Thumpr
Camshaft Gear Attachment: 3-Bolt
Usage: Street/Performance
Advertised Intake Duration: 283
Advertised Exhaust Duration: 303
Intake Duration at .050 Inch Lift: 227
Exhaust Duration .050 Inch Lift: 241
Intake Valve Lift: 0.547
Exhaust Valve Lift: 0.530
Lobe Lift Intake: 0.322
Lobe Lift Exhaust: 0.312
Lobe Separation: 107
Intake Centerline: 102
Valve Timing Lift: 0.006
Exhaust Close ATDC: 45
Intake Open BTDC: 38
Exhaust Open BBDC: 78
Intake Close ABDC: 65