We use cookies to provide you with the best possible user experience. By continuing to use our site, you agree to their use. To learn more, view our Cookie Policy.
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