XFI Mechanical Roller Camshaft GM Gen III/LS1/LS2/LS6 1997-PRESENT (Three-Bolt) Lift: .653" /.648"
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-54-501-11

XFI Mechanical Roller Camshaft GM Gen III/LS1/LS2/LS6 1997-PRESENT (Three-Bolt) Lift: .653" /.648"

$51595
ShippingShips on 09/15/2026
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XFI Mechanical Roller Camshafts
    XFI Mechanical Roller Camshaft
    GM Gen III/LS1/LS2/LS6 1997-PRESENT (Three-Bolt)
  • Lift: .653''/.648''
  • Duration: 278°/285°
  • Lobe Separation Angle: 113°
  • RPM Range: 2100-6700

    Street/Strip, superb mid and upper rpm power. Intake upgrade recommended. Programmer and valve spring upgrade required.

    Operating Range:2100-6700 RPM
    Duration Advertised:278° Intake / 285° Exhaust
    Duration @ .050':243° Intake / 248° Exhaust
    Valve Lift w/1.7 Rockers:.653' Intake / .648' Exhaust
    Lobe Separation Angle:113°

    GM, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0, LS1, LS2, LS3, LS4, LS6, LS7, LSA, LS9, Camaro, Silverado, LS Swap, 383, 350, SBC, Chevelle, Yukon, L92, LM7, 325, GMC, Trailblazer, Corvette, GM LS, GEN III, GEN 3, GEN IV, GEN 4, DOD, AFM, VVT, BTR, Texas Speed


    Street/strip, superb mid and upper RPM power. Intake upgrade recommended. Programmer and valve spring upgrade required.

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

Part TypeCamshaft
BrandCOMP CAMS
Package Height2.8
Package Width2.9
Package Length24.3
Weight9.7 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)248
Cam StyleMechanical roller tappet
Grind NumberXFI278R113
Exh. Duration Advertised (Deg)285
Engine Make/SizeChevy 350 LS6
Intake Valve Lift With Factory Rocker Arm Ratio (I0.653
Int. Duration @ .050 In. (Deg)243
Basic Operating Rpm Range2,100-6,700
Intake Valve Lift0.653 in (16.586 mm)
Computer-Controlled CompatibleYes
Int. Duration Advertised (Deg)278
Lobe Separation (Deg)113
Rpm Range2100-6700
Advertised Duration278 int./285 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.648
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.653 int./0.648 exh.
Camshaft Gear Attachment3-bolt
QuantitySold individually
Exhaust Valve Lift0.648 in (16.459 mm)
Advertised Intake Duration278
Intake Duration At 050 Inch Lift243
Exhaust Duration At 050 Inch Lift248
Advertised Exhaust Duration285
Lifter TypeSolid Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift243 int./248 exh.
Valve Springs RequiredYes
Vendor Part Number54-501-11
Package Qty1
Package TypeEA
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