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COMP Cams 127550

XFI SPR Camshafts Ford 4.6L/5.4L Modular 3V with Blower

COMP Cams 127550

249-127550

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Estimated ship date 08/21/17 if Ordered Today
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COMP Cams 127550 XFI SPR Camshafts Ford 4.6L/5.4L Modular 3V with Blower $737.99
XFI SPR Camshafts
  • Ford 4.6L/5.4L Modular 3V with Blower
  • Lift: .547"/.560"
  • Duration: 272°/287°
  • Lobe Separation Angle: 113°
  • RPM Range: 2000-6900

  • COMP Cams 127550 Details

    Ford 4.6L/5.4L Modular 3V, 2004-Present

  • Blower Applications

    Big power gains in mid to upper RPM range for bolt-on blowers with high boost. Rough idle, solid power gains above 4900 RPM, requires spring & phaser upgrade. Custom tuning required. Best with 3.90+ gears & 3000+ stall.

  • Specifications:

    Intake Valve Lift (in.)
    0.547
    Exhaust Valve Lift (in.)
    0.56
    Int. Duration @ .050 in. (Deg)
    237
    Exh. Duration @ .050 in. (Deg)
    248
    Int. Duration Advertised (Deg)
    272
    Exh. Duration Advertised (Deg)
    287
    Lifter Type
    Hydraulic Roller
    Engine Make/Size
    Ford 4.6L 3V
    Usage
    Street/Strip
    RPM Range
    950-6900
    Advertised Duration
    272 int./287 exh.
    Advertised Exhaust Duration
    287
    Advertised Intake Duration
    272
    Basic Operating RPM Range
    2,000-6,900
    Cam Style
    Hydraulic roller follower
    Computer-Controlled Compatible
    Yes
    Duration at 050 inch Lift
    237 int./248 exh.
    Exhaust Duration at 050 inch Lift
    248
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.56
    Grind Number
    XE272PH-13
    Intake Duration at 050 inch Lift
    237
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.547
    Quantity
    Sold as a pair
    Valve Lift with Factory Rocker Arm Ratio
    0.547 int./0.560 exh.
    Valve Springs Required
    Yes
    Lobe Separation (Deg)
    113
    Manufacturer's Part Number:
    127550

    Comp Cams XFI SPR ("Springs and Phaser Mods Required") Camshafts are the best way to achieve the most horsepower and torque gains possible on the popular Ford 4.6L/5.4L Modular 3 Valve engines. This group of cam sets are available for naturally aspirated & supercharged engines; each version is offered in three performance levels. Designed to work with a modified Ford variable cam timing (VCT) system, these cams are direct replacement components. Working with Comp Cams Phaser Limiter Kit, XFI SPR Camshafts optimize both low and high RPM performance. As noted by the Comp Cams engineering staff during dyno testing, these camshafts provided the biggest power and torque improvements of any cam series they've ever tested in the Ford Modular 3 Valve engine.

    Feature:
  • Two camshaft profiles engineered to make more horsepower and torque
  • Improved throttle response and increased engine vacuum
  • Designed for use with component technology, such as 249-26120 Beehive valve springs
  • The perfect combination for any Ford engine builder contemplating increased stroke displacement

  • Does COMP Cams 127550 fit your vehicle?

    Narrow Results

    2006-2008 MERCURY GRAND MARQUIS

    • Liter: 4.6
    • SubModel: GS
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2006-2008 FORD CROWN VICTORIA

    • Liter: 4.6
    • SubModel: BASE
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2004 MERCURY MARAUDER

    • EngineType: ALL
    • SubModel: ALL

    2006-2007 MERCURY GRAND MARQUIS

    • Liter: 4.6
    • SubModel: LS
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2006-2007 LINCOLN TOWN CAR

    • Liter: 4.6
    • SubModel: SIGNATURE
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2006-2008 LINCOLN TOWN CAR

    • Liter: 4.6
    • SubModel: EXECUTIVE L
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2008 MERCURY GRAND MARQUIS

    • EngineType: ALL
    • SubModel: LS

    2006-2008 LINCOLN TOWN CAR

    • Liter: 4.6
    • SubModel: EXECUTIVE
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2006-2008 LINCOLN TOWN CAR

    • Liter: 4.6
    • SubModel: SIGNATURE L
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2008 FORD CROWN VICTORIA

    • Liter: 4.6
    • SubModel: POLICE INTERCEPTOR
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2006-2008 FORD CROWN VICTORIA

    • Liter: 4.6
    • SubModel: LX
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2006-2007 LINCOLN TOWN CAR

    • Liter: 4.6
    • SubModel: DESIGNER SERIES
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2006-2008 LINCOLN TOWN CAR

    • Liter: 4.6
    • SubModel: SIGNATURE LIMITED
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )
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