XFI Hydraulic Roller Camshaft GM LS2/LS3, GEN IV 2005-Present (Single-Bolt) Lift: .571"/.590"
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COMP CAMSPART NUMBER: 249-146-428-11

XFI Hydraulic Roller Camshaft GM LS2/LS3, GEN IV 2005-Present (Single-Bolt) Lift: .571"/.590"

$51595
ShippingShips on Sep 04, 2026
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XFI Hydraulic Roller Camshafts
  • W/O VVT & AFM
  • 2005-Present
    • XFI Hydraulic Roller Camshaft
      GM LS2/LS3, GEN IV 2005-Present (Single-Bolt)
    • Lift: .571"/.590"
    • Duration: 281°/293°
    • Lobe Separation Angle: 113°
    • RPM Range: 2200-7200

      High rpm street/strip camshaft for use with FASTT intake. Requires programmer.

      Operating Range:2200-7200 RPM
      Duration Advertised:281° Intake / 293° Exhaust
      Duration @ .050' Lift:228° Intake / 240° Exhaust
      Valve Lift:.571' Intake / .590' Exhaust
      Lobe Separation Angle:113°

      GM; LS; Camaro; LS1; LS2; LS3; LS4; LS6; LS7; LM7; 5.3; 5.7;.4.8; LSX; LS Swap; 6.2; 7.0; Corvette; Firebird; WS6; SS; Tahoe; Trailblazer; Pontiac; Trans-Am; LM7; L99; CTS-V; Cadillac; G8; Impala; Silverado; Yukon; Avalanche; Sierra; LQ4; LQ9


      High RPM street/strip camshaft for use with FAST intake. Requires programmer.

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    Since the introduction of, GM's LS/Gen IV engine has quickly become the ''preferred choice'' among many engine builders and performance enthusiasts. Right from the factory, the GM LS/Gen IV engine boasts a surprisingly efficient induction design, reduced weight and impressive power output. As the leading developer of high performance LS/Gen IV valve train technology, Comp Cams has engineered a full line of products proven to release the incredible horsepower and torque hidden inside while never sacrificing ever-critical reliability.

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    Features:

    • Take advantage of today's newer and better flowing aftermarket cylinder heads
    • Feature higher exhaust duration and overall lift to provide broadest powerband and most top end power of any COMP Cams LS camshaft
    • Unique grinds for both cathedral & rectangle port heads
    • Require 26926-16 high pressure valve springs
    Part TypeCamshaft
    Product LineComp Cams Hydraulic Roller Camshafts For GM LS-Series/Gen IV Engines
    BrandCOMP CAMS
    Package Height2.9
    Package Width3.0
    Package Length24.4
    Weight9.85 PG
    Part CategoryPerformance Parts
    Exh. Duration @ .050 In. (Deg)240
    Cam StyleHydraulic roller tappet
    Grind NumberXR281HR13
    Exh. Duration Advertised (Deg)293
    Engine Make/SizeChevy 350 LS6
    Intake Valve Lift With Factory Rocker Arm Ratio (I0.571
    Int. Duration @ .050 In. (Deg)228
    Basic Operating Rpm Range2,200-7,200
    Intake Valve Lift0.571 in (14.503 mm)
    Computer-Controlled CompatibleYes
    Int. Duration Advertised (Deg)281
    Lobe Separation (Deg)113
    Rpm Range2200-7200
    Advertised Duration281 int./293 exh.
    Exhaust Valve Lift With Factory Rocker Arm Ratio (0.59
    UsageStreet/Strip
    Valve Lift With Factory Rocker Arm Ratio0.571 int./0.590 exh.
    Camshaft Gear Attachment1-bolt
    QuantitySold individually
    Exhaust Valve Lift0.59 in (14.986 mm)
    Advertised Intake Duration281
    Intake Duration At 050 Inch Lift228
    Exhaust Duration At 050 Inch Lift240
    Advertised Exhaust Duration293
    Lifter TypeHydraulic Roller
    Duration At 050 Inch Lift228 int./240 exh.
    Valve Springs RequiredYes
    Vendor Part Number146-428-11
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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