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COMP Cams Camshaft CS 301QnHR-6
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COMP Cams
COMP Cams

COMP Cams Camshaft CS 301QnHR-6

$619.06

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COMP Cams CS 301QnHR-6 Drag Race camshaft for SBC. 248/256 duration. Requires 10:1+ compression and 8500+ stall. Not CARB approved.

Key Features

  • Fits Chevrolet Gen 1 Small Blocks including 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cubic inch engines.
  • Features a 248-degree intake and 256-degree exhaust duration at .050 lift for aggressive performance.
  • Hydraulic roller camshaft designed for high-RPM operation.
  • Requires a minimum of 10:1 compression ratio and an 8500+ RPM stall speed torque converter.
  • Optimized for use with Melanized or Nitrided distributor gears; incompatible with cast or steel gears without surface treatment.
  • Not compatible with factory roller Small Blocks from 1985 and newer, or LS-based engines.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

This COMP Cams CS 301QnHR-6 camshaft is built for serious drag racing, specifically optimized for 1/8th mile bracket racing. It features a 248-degree intake and 256-degree exhaust duration at .050 lift, designed to work with a hydraulic roller valvetrain. To get the most out of this cam, you'll need a solid foundation, including at least 10:1 compression and an 8500+ RPM stall speed torque converter. This camshaft fits a wide range of Chevrolet Gen 1 Small Block engines, including popular displacements like the 350 and 400, but it's important to verify your specific engine's factory roller or flat tappet configuration, as it does not fit factory roller blocks from 1985 and newer or any LS-based engines.

For optimal performance and to maintain warranty coverage, this camshaft requires the use of a Melanized or Nitrided distributor gear. Using a cast or steel gear without similar surface treatments is not compatible and will void the warranty. This cam is designed for maximum performance in its intended application, so ensure your engine build can support its demands for compression and RPM. It's a well-built component for racers looking to extract significant power from their Small Block Chevrolet.

When installing this camshaft, remember that it is not CARB approved and cannot be shipped to California. Always consult the manufacturer's installation instructions for specific details regarding distributor gear compatibility and any other required components for a successful build.

Specifications

Brand
COMP Cams
Manufacturer Part #
12-870-11
UPC
036584265474

Frequently Asked Questions

COMP Cams Camshaft CS 301QnHR-6

$619.06