Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) RPM Operating Range:1,300-5,600 Grind Number:XE262H Cam Type:Hydraulic Flat Tappet Lifter Style:Hydraulic Flat Tappet Camshaft Series:Xtreme Energy Usage:Street/Performance California Proposition 65:WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Advertised Intake Duration:262 Advertised Exhaust Duration:270 Intake Duration at .050 Inch Lift:218 Exhaust Duration at .050 Inch Lift:224 Intake Valve Lift:0.462 Exhaust Valve Lift:0.469 Lobe Lift Intake:0.308 Lobe Lift Exhaust:0.313 Lobe Separation:110 Intake Centerline:106 Exhaust Close ATDC:21 Intake Open BTDC:25 Exhaust Open BBDC:69 Intake Close ABDC:57 Camshaft Gear Attachment:3-Bolt