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

SKU

54-461-11

$479.95

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 P65Warnings.ca.gov

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

Specifications