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Comp Cams LSR Rectangular Port 235/251 Hydraulic Roller Camshaft (99-13 V8 Sierra 1500)Find parts that fit my vehicle

Item S550859
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      Product Information

      Features, Description, Q&A

      Features

      • Hydraulic Roller Camshaft delivering very strong mid-range to high-end torque and horsepower for LS engines equipped with rectangular port cylinder heads.
      • Manufacturer: COMP Cams
      • Warranty: 12 Months
      • Engine Family: GM LS GEN III/IV 3-Bolt 8 Cylinder, 1997-2015
      • RPM Operating Range: 2,200-7,200
      • Cam Type: Hydraulic Roller
      • Camshaft Series: LSR Rectangular Port All Out Power
      • Camshaft Gear Attachment: 3-Bolt
      • Advertised Intake Duration: 285
      • Advertised Exhaust Duration: 301
      • Intake Duration at .050 Inch Lift: 235
      • Exhaust Duration at .050 Inch Lift: 251
      • Intake Valve Lift: 0.621
      • Exhaust Valve Lift: 0.624
      • Lobe Lift Intake: 0.365
      • Lobe Lift Exhaust: 0.367
      • Lobe Separation Angle: 113°
      • Intake Centerline: 109°
      • Valve Timing Lift: 0.006
      • Exhaust Close ATDC: 34°
      • Intake Open BTDC: 32°
      • Exhaust Open BBDC: 86°
      • Intake Close ABDC: 72°
      • Make: GM
      • Engine: LS GEN III/IV 3-Bolt 8 Cylinder, 1997-2015
      • Lifter Type: Hydraulic Roller
      • Usage: Street / Strip
      • Performance Package: No
      • Fits: 1999-2013 V8 Sierra 1500

      Description

      PREMIUM PERFORMANCE CAMSHAFT. The Comp Cams LSR Rectangular Port 235/251 Hydraulic Roller Camshaft is engineered to significantly improve mid-range to high-end torque and horsepower precisely for LS engines with rectangular port cylinder heads. Ideal for performance engine builds, it delivers reliable power gains suitable for both street and strip use, making it an essential upgrade for enthusiasts seeking maximum engine output.

      CONSTRUCTION AND APPEARANCE. This camshaft is manufactured using high-quality materials and features precision-engineered hydraulic roller lifters to ensure durability and optimized performance. It includes a sturdy 3-bolt gear attachment and is finished to withstand demanding operating conditions for long-lasting reliability.

      INSTALLATION. Installation is straightforward for experienced mechanics familiar with LS engine platforms and requires no drilling or additional modifications. Ensuring proper setup is crucial to achieve optimal performance and maintain engine reliability.

      WARRANTY. This camshaft comes with a 12-month warranty covering defects and performance issues during normal use.

      APPLICATION. Specifically designed for the 1999 to 2013 V8 Sierra 1500, this camshaft fits LS GEN III/IV 3-Bolt 8-cylinder engines used in that model, supporting both street and strip applications without exclusions.

      Comp Cams 54-470-11

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.7

      Reviews of Comp Cams Engine Products (361)

      Questions & Answers

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      Will It Fit My Sierra 1500

      • 4.8L V8 - 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13
      • 5.3L V8 - 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13
      • 6.0L V8 - 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13
      • 6.2L V8 - 07, 08, 09, 10, 11, 12, 13