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COMP Cams 656-421-13

XFI AFM Hydraulic Roller Camshaft GM LS, GEN IV 2005-2008 (Single-Bolt) Lift: .500"/.500"

COMP Cams 656-421-13
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249-656-421-13

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COMP Cams 656-421-13 XFI AFM Hydraulic Roller Camshaft GM LS, GEN IV 2005-2008 (Single-Bolt) Lift: .500"/.500" $497.99
XFI AFM Hydraulic Roller Camshaft
GM LS, GEN IV 2005-2008 (Single-Bolt)
  • Lift: .500"/.500"
  • Duration: 266°/278°
  • Lobe Separation Angle: 114°
  • RPM Range: 1600-6500

  • COMP Cams 656-421-13 Details

    XFI AFM Hydraulic Roller Camshafts

  • W/ VVT (12585994) & AFM
  • 2005-2008

  • Strong Power Gains
  • Smooth Idle

  • Specifications:

    Exhaust Valve Lift (in.)
    0.5
    Intake Valve Lift (in.)
    0.500
    RPM Range
    1600-6500
    Int. Duration @ .050 in. (Deg)
    216
    Exh. Duration @ .050 in. (Deg)
    228
    Int. Duration Advertised (Deg)
    278
    Exh. Duration Advertised (Deg)
    290
    Lifter Type
    Hydraulic Roller
    Usage
    Street/Performance
    Engine Make/Size
    Chevy LS Series
    Advertised Duration
    278 int./290 exh.
    Advertised Exhaust Duration
    290
    Advertised Intake Duration
    278
    Basic Operating RPM Range
    1,500-6,500
    Cam Style
    Hydraulic roller tappet
    Camshaft Gear Attachment
    1-bolt
    Computer-Controlled Compatible
    Yes
    Duration at 050 inch Lift
    216 int./228 exh.
    Exhaust Duration at 050 inch Lift
    228
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.5
    Intake Duration at 050 inch Lift
    216
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.5
    Quantity
    Sold individually
    Valve Lift with Factory Rocker Arm Ratio
    0.500 int./0.500 exh.
    Valve Springs Required
    Yes
    Lobe Separation (Deg)
    114
    Manufacturer's Part Number:
    656-421-13

    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.

    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

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