LSR Cathedral Port 251/259 Hydraulic Roller Cam for GM LS GEN III/IV

HYDRAULIC ROLLER-420+ci, high compression, high rpm, cathedral CNC-ported heads in race type applications.

SKU

54-464-11

$424.59

Grind Number: 301LRx HR15

Engine Family: GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)

RPM Operating Range: 2,600-7,000

Cam Type: Hydraulic Roller

Lifter Style: Hydraulic Roller

Camshaft Series: LSR Cathedral Port Large Displacement

Camshaft Gear Attachment: 3-Bolt

Valve Springs Required: Yes

Camshaft Material: Billet Steel

California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

Advertised Intake Duration: 301

Advertised Exhaust Duration: 309

Intake Duration at .050 Inch Lift: 251

Exhaust Duration at .050 Inch Lift: 259

Intake Valve Lift: 0.624

Exhaust Valve Lift: 0.624

Lobe Separation: 115

Assembly Lubricant Included: No

Intake Centerline: 112

Lobe Lift Intake: 0.367

Lobe Lift Exhaust: 0.367

Valve Timing @ 0.006 Lift:

Exhaust Close ATDC: 37

Exhaust Open BBDC: 91

Intake Open BTDC: 37

Intake Close ABDC: 83

Component Part Number

Break-In Lube: 159

Specifications