Comp Cams Ls1 Xr281hr-12 High-Performance Engines Engineered to handle serious displacement

Engineered to handle serious displacement with corrosion-resistant construction that won't degrade under sustained heat and boost

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Keep extras in vehicle for unexpected passengers

Confirm you have the hardware on hand before install—if anything's missing

Will the wiring harness plug straight in

Comp Cams Ls1 Xr281hr-12 High-Performance Engines Engineered to handle serious displacementXFIT RPM Hi Lift, XR281HR High RPM Street Strip Camshaft for use w LS6 or Aftermarket Intake HYDRAULIC ROLLER High RPM street strip camshaft for use with LS6 or aftermarket intake. Requires computer modifications. Lifter Type: Hydraulic Roller Engine Family: GM LS Gen III IV 8 Cyl. '97 Current Three Bolt 4. 8 5. 3 5. 7 6. 0 6. 2 7. 0L Engines Cam Family: XFIT RPM High Lift Specifications Intake Exhaust RPM Range: Valve Lash: Valve Timing: Duration: