

Specifications
- Brand
- COMP Cams
- Part #
- 12-860-9
- UPC
- 036584015444

COMP Cams Camshaft CS 287Tk-R6
$604.45
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COMP Cams Oval Track 259/264 Solid Roller Camshaft for Chevrolet Small Block Gen 1 engines. Optimized for performance builds.
Key Features
- Fits Chevrolet GEN 1 Small Blocks including 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400 cubic inch engines.
- Solid roller camshaft design for improved performance and higher RPM capability.
- Intake duration of 259 degrees and exhaust duration of 264 degrees.
- Optimized for use with Melanized or Nitrided distributor gears; cast iron or steel gears without these treatments will void warranty.
- Designed for late model engines (377-406 CID) with upgraded heads, intake, and carburetor.
- Requires a 1.6:1 rocker arm ratio for optimal performance.
⚠️ 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
Product Details
This COMP Cams CS 287Tk-R6OT camshaft features a solid roller design with a 259/264 degree intake/exhaust duration. It's specifically tuned for late-model Chevrolet Small Block engines, typically those displacing 377-406 cubic inches, when paired with good cylinder heads, an intake manifold, and a carburetor. For optimal performance, a 1.6:1 rocker arm ratio is recommended.
The solid roller valvetrain offers reduced friction and allows for higher engine speeds compared to flat tappet designs. This camshaft is intended for performance applications and is optimized for use with Melanized or Nitrided distributor gears. Using cast iron or steel distributor gears without these surface treatments will void the warranty, so it's crucial to select the correct gear type for reliable operation and to maintain coverage.
This camshaft fits a wide range of Chevrolet Gen 1 Small Block engines, including popular displacements like the 350, 400, and 327. It's important to verify your engine's configuration, as factory roller camshafts were gradually introduced from the mid-1980s onward. Engines from 1955-1957 with a specific oiling groove on the rear journal will require a different camshaft. Always consult your vehicle's specific build or contact us if you're unsure about compatibility.
Specifications
- Brand
- COMP Cams
- Manufacturer Part #
- 12-860-9
- UPC
- 036584015444
Frequently Asked Questions
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