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Comp Cams Xtreme Energy XR276HR Hydraulic Roller Cam CCA-51-423-11

Lift with 1.5 ratio rockers: .502/.510
Lift with 1.65 ratio rockers: .552/.561
Duration: 276°/282°
Lobe Separation Angle: 110°
RPM Range: 1800-5600
Pricing: $551.95
5 5 1

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Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve
More vacuum allows a step up in duration for greater performance
Best seller; excellent all around performance in street carbureted applications
Important Considerations:
Work best with COMP Cams® roller rockers and matched valve springs
Require other performance parts (intake manifold, headers, etc.) for best performance


  • CCA-51-423-11
  • CCA-51-423-11
  • Comp Cams
  • New

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  • Item Requires Shipping
  • 10.0 lbs.
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Customer Reviews

Comment Total Reviews (1)

Very happy with power output
  • Currently 5/5 Stars

Reviewed by:

Product ownership: A year or longer

Not purchased from: Butler Performance Inc.

Running this cam in a Pontiac 350 Stroker (4.25" crank) bored .060 over with 6X-4 heads and Edelbrock Torker I manifold. Produced 442 Lb Ft@4300 RPM and 453 HP@5600 RPM on dyno. Sounds great as well!


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