LSR Cathedral Port 239/247 Hydraulic Roller Cam for GM LS GEN III/IV

HYDRAULIC ROLLER-Broad top end power range for high rpm, race only LS engines with aftermarket cathedral port cylinder heads & higher compression.

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: 2,400-7,200
Grind Number: 289LR HR14
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: 289
Advertised Exhaust Duration: 297
Intake Duration at .050 Inch Lift: 239
Exhaust Duration at .050 Inch Lift: 247
Intake Valve Lift: 0.624
Exhaust Valve Lift: 0.624
Lobe Lift Intake: 0.367
Lobe Lift Exhaust: 0.367
Lobe Separation: 114
Intake Centerline: 110
Exhaust Close ATDC: 31
Intake Open BTDC: 34
Exhaust Open BBDC: 85
Intake Close ABDC: 75
Camshaft Gear Attachment: 3-Bolt
Component Part Number
Break-In Lube: 159