LSR Cathedral Port 231/239 Hydraulic Roller Cam for GM LS GEN III/IV

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

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: 2,000-7,000
Grind Number: 281LR HR-13
Cam Type: Hydraulic Roller
Lifter Style: Hydraulic Roller
Camshaft Series: LSR Cathedral Port All Out Power
California Proposition 65: WARNING: Cancer and Reproductive Harm
Advertised Intake Duration: 281
Advertised Exhaust Duration: 289
Intake Duration at .050 Inch Lift: 231
Exhaust Duration at .050 Inch Lift: 239
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: 28
Intake Open BTDC: 30
Exhaust Open BBDC: 81
Intake Close ABDC: 70
Camshaft Gear Attachment: 3-Bolt