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LSR Rectangular Port 231/247 Hydraulic Roller Cam for GM LS GEN III/IV


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

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UPC 036584195313
Manufacturer COMP Cams®
Emissions Code
Engine Family GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)
RPM Operating Range 2,000-7,000
Cam Type Hydraulic Roller
Camshaft Series LSR Rectangular Port All Out Power
Camshaft Gear Attachment 3-Bolt
California Proposition 65 WARNING: Cancer and Reproductive Harm
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
Valve Timing Lift 0.006
Exhaust Close ATDC 32
Intake Open BTDC 30
Exhaust Open BBDC 84
Intake Close ABDC 70
Lifter Style Hydraulic Roller