HYDRAULIC ROLLER-Very wide power range and excellent midrange torque for LS engines with rectangular port cylinder heads.

Camshaft Material:

Valve Springs Required:

Assembly Lubricant Included:

Engine Family:GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)

RPM Operating Range:2,000-7,000

Grind Number:281LRR HR-13

Cam Type:Hydraulic Roller

Lifter Style:Hydraulic Roller

Camshaft Series:LSR Rectangular Port All Out Power

California Proposition 65:WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

Advertised Intake Duration:281

Advertised Exhaust Duration:297

Intake Duration at .050 Inch Lift:231

Exhaust Duration at .050 Inch Lift:247

Intake Valve Lift:0.617

Exhaust Valve Lift:0.624

Lobe Lift Intake:0.363

Lobe Lift Exhaust:0.367

Lobe Separation:113

Intake Centerline:109

Exhaust Close ATDC:32

Intake Open BTDC:30

Exhaust Open BBDC:84

Intake Close ABDC:70

Camshaft Gear Attachment:3-Bolt

COMP Cams Camshaft : LSR Rectangular Port 231/247 Hydraulic Roller Cam for GM LS GEN III/IV

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