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Comp Cams Xtreme Energy 240/246 Hydraulic Flat Camshaft SK-Kit (55-86 Small Block V8 Corvette C1, C2, C3 & C4)Find parts that fit my vehicle

Item EK-25-909119
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$377.95 kit

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      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • Comp Cams Xtreme Energy Hydraulic Flat Camshaft SK-Kit
      • Intake Duration of 240 at 0.050 Inches
      • Exhaust Duration of 246 at 0.050 Inches
      • Matte Black and Polished Chrome Finish
      • Stall at 2,800+
      • RPM Operating Range of 2,300 to 6,500
      • Uses a 3-Bolt Camshaft Gear Attachment
      • Advertised Intake Duration of 284
      • Advertised Exhaust Duration of 296
      • Hydraulic Flat Tappet Lifters
      • For Use with Small Block Chevrolet Engines in Street or Street Applications
      • Optimal Use with Comp Cams Roller Rockers and Matched Valve Springs
      • Improved Torque, Vacuum, Response, and Power
      • Direct Replacement
      • Comes in Kits
      • Fits 1955-1986 Small Block V8 Chevrolet Corvette C1, C2, C3 and C4 Models

      Description

      Performance Camshaft Upgrade for Street Builds. The Comp Cams Xtreme Energy Hydraulic Flat Camshaft SK-Kit is engineered for high-performance street use, delivering improved torque, throttle response, and top-end power. Designed for 1955–1986 Chevrolet Corvette C1, C2, C3, and C4 models with small block V8 engines, this camshaft kit enhances drivability across a wide RPM range while maintaining vacuum for accessories and strong idle quality with the right tuning.

      Construction and Appearance. Featuring a matte black and polished chrome finish, the camshaft and components in this kit are built for durability and high-temperature performance. With an intake duration of 240 and exhaust duration of 246 at 0.050 inches, and advertised durations of 284 intake and 296 exhaust, this camshaft supports an operating range from 2,300 to 6,500 RPM. The 3-bolt camshaft gear attachment ensures solid integration with your engine’s timing assembly, while the included hydraulic flat tappet lifters support smooth operation and long-term reliability.

      Installation. This camshaft kit installs as a direct replacement and is ideal for experienced builders or professional installation. It is best paired with Comp Cams roller rockers and matched valve springs to achieve maximum performance. The SK-Kit includes essential components for installation, though exact parts may vary depending on engine setup. A higher stall torque converter (2,800+ RPM) is recommended to take full advantage of the cam's profile.

      Application. The Comp Cams Xtreme Energy Hydraulic Flat Camshaft SK-Kit fits 1955–1986 Chevrolet Corvette C1, C2, C3, and C4 models equipped with small block V8 engines. Designed for street and street/strip applications, it delivers aggressive mid-range power and crisp throttle response without sacrificing reliability—making it a top choice for performance builds seeking more punch on demand.

      Comp Cams SK12-250-3

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

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) a Day

      Difficulty Level:

      Mechanical expertise or professional installation required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Camshaft Kit

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Corvette

      • Base - 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 77, 78, 79, 80, 81, 82, 84, 85, 86
      • Collector's Edition - 82
      • Indianapolis 500 Pace Car - 78, 86
      • Silver Anniversary Edition - 78
      • Stingray - 75, 76

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