LSR Rectangular Port 247/263 Hydraulic Roller Cam for GM LS GEN III/IV

HYDRAULIC ROLLER-400+ci, high rpm applications with major modifications and cathedral port cylinder heads.

SKU
54-473-11
$424.59
Grind Number: 297LRR HR14
Engine Family: GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)
RPM Operating Range: 2,400-7,000
Cam Type: Hydraulic Roller
Lifter Style: Hydraulic Roller
Camshaft Series: LSR Rectangular Port Large Displacement
Camshaft Gear Attachment: 3-Bolt
Usage: Strip
Valve Springs Required: Yes
Camshaft Material: Billet Steel
California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration: 297
Advertised Exhaust Duration: 313
Intake Duration at .050 Inch Lift: 247
Exhaust Duration at .050 Inch Lift: 263
Intake Valve Lift: 0.624
Exhaust Valve Lift: 0.624
Lobe Separation: 114
Assembly Lubricant Included: No
Intake Centerline: 111
Lobe Lift Intake: 0.367
Lobe Lift Exhaust: 0.367
Valve Timing @ 0.006 Lift:
Exhaust Close ATDC: 40
Exhaust Open BBDC: 92
spec-card-valve-timing
Intake Open BTDC: 36
Intake Close ABDC: 80
Component Part Number
Break-In Lube: 159