Engine Family:Pontiac 265-455 c.i. 8 Cyl. (1955-1981)
RPM Operating Range:1,800-6,000
Grind Number:XE274H
Cam Type:Hydraulic Flat Tappet
Lifter Style:Hydraulic Flat Tappet
Camshaft Series:Xtreme Energy
Usage:Street/Performance
Advertised Intake Duration:274
Advertised Exhaust Duration:286
Intake Duration at .050 Inch Lift:230
Exhaust Duration at .050 Inch Lift:236
Intake Valve Lift:0.488
Exhaust Valve Lift:0.491
Lobe Lift Intake:0.325
Lobe Lift Exhaust:0.327
Lobe Separation:110
Intake Centerline:106
Exhaust Close ATDC:29
Intake Open BTDC:31
Exhaust Open BBDC:77
Intake Close ABDC:63
Camshaft Gear Attachment:1-Bolt