Instruction Manual: COMP Cams Magnum Hydraulic Flat Cam SK-Kit

Introduction

This manual provides essential information for the installation, operation, and maintenance of your COMP Cams SK12-211-2 Magnum 224/224 Hydraulic Flat Cam SK-Kit. This high-performance kit is designed to enhance the capabilities of compatible Chevrolet Small Block engines. Please read all instructions carefully before proceeding with installation or operation.

Product Overview

The COMP Cams SK12-211-2 Magnum SK-Kit is a comprehensive package designed for optimal engine performance. It includes the following components:

• One high-performance camshaft
• A complete set of hydraulic flat tappet lifters
• Assembly lubricant for initial installation
• A timing set for precise valve timing
• Detailed instructions for installation

Image: The COMP Cams SK12-211-2 Magnum SK-Kit, showing the camshaft, a set of hydraulic lifters, and the timing chain with its sprockets.

Key Features

• High Performance: Engineered for significant power gains.
• Operating Range: Optimized for an 1,800-5,800 RPM operating range.
• Camshaft Specifications: Features 224/224 Duration at .050", a 110 Degree Lobe Separation Angle, and 0.470"/0.470" Valve Lift.
• Idle Characteristics: Produces a mild rough idle, indicative of its performance profile.
• Torque Converter Recommendation: Best performance achieved with aftermarket torque converters, ideally 2000+ stall.
• Compression Ratio: Recommended for engines with at least 9.5:1 compression.
• Valvetrain Compatibility: Designed to be easy on valvetrain components, compatible with mild ratio rocker arms and traditional performance valve springs.
• Quality Manufacturing: Proudly Made in USA.

Compatibility

This SK-Kit is specifically designed for Chevrolet GEN 1 Small Blocks. It is compatible with engine displacements including 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cubic inches.

Important Note: This kit is not compatible with LT1/LT4 engines or factory roller Small Blocks manufactured from 1985 and newer.

Setup and Installation

Installation of a camshaft and lifter kit requires specialized knowledge and tools. It is highly recommended that installation be performed by a qualified automotive professional.

General installation considerations include:

• Ensure all engine components are clean and free of debris before installation.
• Apply the provided assembly lubricant to the camshaft lobes and lifter bases during installation to prevent premature wear during initial engine startup.
• Properly align and install the timing set according to the included instructions to ensure correct valve timing.
• Follow the manufacturer's recommended break-in procedure for hydraulic flat tappet camshafts. This typically involves running the engine at varying RPMs (above idle) for a specified period to properly seat the lifters and camshaft lobes.
• Verify proper valve lash and rocker arm geometry after installation.

Refer to the detailed instructions included in your SK-Kit for specific step-by-step guidance.

Operating Characteristics

Once installed, the SK12-211-2 camshaft will provide a noticeable performance increase within its optimal operating range of 1,800-5,800 RPM. Users can expect a mild rough idle, characteristic of a performance camshaft. For best results, especially with the "biggest cam with stock converter" setup, consider upgrading to a 2000+ RPM stall torque converter and using lower gears in your vehicle's drivetrain.

Maintenance

Regular engine maintenance is crucial for the longevity and performance of your COMP Cams SK-Kit. Ensure timely oil changes with high-quality engine oil, especially those formulated for flat tappet camshafts, which often contain higher levels of ZDDP (Zinc Dialkyldithiophosphate) for wear protection. Monitor engine oil pressure and temperature. Any unusual noises or performance changes should be investigated promptly by a qualified mechanic.

Troubleshooting

If you encounter issues after installation, consider the following common troubleshooting points:

• Improper Break-in: Failure to follow the correct break-in procedure for flat tappet cams can lead to premature lobe and lifter wear. Ensure the engine is run at varying RPMs (above idle) for the recommended duration immediately after startup.
• Incorrect Valve Lash: Improperly adjusted valve lash can cause excessive valvetrain noise or poor performance. Re-check and adjust valve lash as per engine specifications.
• Timing Issues: Incorrect timing chain installation can lead to poor engine performance or damage. Verify the timing marks are correctly aligned.
• Oil Quality: Using oil without adequate anti-wear additives (like ZDDP) can cause cam and lifter failure. Ensure you are using oil suitable for flat tappet applications.

For persistent issues, consult with a certified automotive technician or contact COMP Cams technical support.

Specifications

Warranty Information

For specific warranty details regarding your COMP Cams SK12-211-2 kit, please refer to the warranty documentation included with your product packaging or visit the official COMP Cams website. Warranties typically cover manufacturing defects and material flaws under normal use and service.

Support and Contact

If you require technical assistance, have questions about installation, or need to report an issue, please contact COMP Cams customer support. Contact information can typically be found on the product packaging or the official COMP Cams website. When contacting support, please have your product model number (SK12-211-2) and purchase details readily available.

For additional resources and product information, visit the official COMP Cams website.