LSR Cathedral Port 223/231 Hydraulic Roller Cam for GM LS GEN III/IV

HYDRAULIC ROLLER-Steady power throughout broad range. Needs aftermarket airflow improvements on inlet and exhaust.

In stock
Camshaft Material:
Valve Springs Required:
Assembly Lubricant Included:
Engine Family: GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)
RPM Operating Range: 1,700-6,800
Grind Number: 273Lr HR12
Cam Type: Hydraulic Roller
Lifter Style: Hydraulic Roller
Camshaft Series: LSR Cathedral Port Small Displacement/Max Torque
California Proposition 65: WARNING: Cancer and Reproductive Harm
Advertised Intake Duration: 273
Advertised Exhaust Duration: 281
Intake Duration at .050 Inch Lift: 223
Exhaust Duration at .050 Inch Lift: 231
Intake Valve Lift: 0.61
Exhaust Valve Lift: 0.617
Lobe Lift Intake: 0.359
Lobe Lift Exhaust: 0.363
Lobe Separation: 112
Intake Centerline: 107
Exhaust Close ATDC: 24
Intake Open BTDC: 28
Exhaust Open BBDC: 76
Intake Close ABDC: 64
Camshaft Gear Attachment: 3-Bolt
Component Part Number
Break-In Lube: 159
Lifter Kit: 850-16  /   875-16