Comp 54-478-11 LSR Centrifical Supercharger Hydraulic Roller

HYDRAULIC ROLLER − Good high rpm power when used with a centrifugal blower.

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Part Number: Grind Number:
Lifter Type:
Engine Family:
Description:
Cam Family:
Specifications     Intake Exhaust
RPM Range: Valve Lash:
Valve Timing: Duration:
Lobe Separation:   Duration @ .050" Lift:
Intake Centerline: Valve Lift:
    Lobe Lift:
Valve Timing @ 0.006  Lift:      
  Exhaust
Closes 31
  ATDC
Opens 89
  BBDC
110 Valve Timing Diagram
Intake  
31 Opens
BTDC  
73 Closes
ABDC  
Recommended Components
ComponentPart Number
Lifter Kit 15850-16 [11] / 15956-16
Timing Set

3158KT

3167KT for LS7

Rocker Arms 1500 / 1521 / 13702-KIT
Push Rods 7955-16
Dual Valve Spring Kits 26926TS-KIT
Camshaft Break-In Lube 159
Installation Notes (These notes apply to the above recommended components with the trailing installation note numbers)
NoteDescription
11 [11] Lifters only, does not include lifter retainers or guides.

 

Grind Number:285LCB HR15
Engine Family:GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)
RPM Operating Range:2,500-7,200
Cam Type:Hydraulic Roller
Lifter Style:Hydraulic Roller
Camshaft Series:LSR Centrifugal Blower
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:285
Advertised Exhaust Duration:301
Intake Duration at .050 Inch Lift:235
Exhaust Duration at .050 Inch Lift:251
Intake Valve Lift:0.621
Exhaust Valve Lift:0.624
Lobe Separation:115
Assembly Lubricant Included:No
Intake Centerline:110
Lobe Lift Intake:0.365
Lobe Lift Exhaust:0.367
Comp 54-478-11 LSR Centrifical Supercharger Hydraulic Roller
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  • Item #: Comp 54-478-11
  • Manufacturer: Comp Cams
  • Condition: New
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Price $434.95
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