Comp Cams SK12-210-2 High Energy/Marine Hydraulic Flat Cam SK-Kit Instruction Manual

1. Introduction

This instruction manual provides essential information for the proper installation, operation, and maintenance of your Comp Cams SK12-210-2 High Energy/Marine Hydraulic Flat Cam SK-Kit. This kit is designed for Chevrolet Small Block engines, offering a balance of efficiency and performance. Please read this manual thoroughly before proceeding with installation or operation to ensure optimal performance and longevity of your engine components.

2. Product Overview

The Comp Cams SK12-210-2 SK-Kit is a comprehensive package for upgrading your Chevrolet Small Block engine's camshaft system. It includes the following components:

• Camshaft: A hydraulic flat tappet camshaft with 218/218 duration at .050" lift, a 110-degree lobe separation angle, and 0.454"/0.454" valve lift.
• Lifters: A complete set of hydraulic flat tappet lifters.
• Assembly Lubricant: Essential for initial break-in protection.
• Timing Set: A matching timing chain and gear set.
• Instructions: Detailed installation guidelines.

This kit is engineered for an operating RPM range of 1,500-5,500, providing good street performance with a stock torque converter and a characteristic choppy idle. It is also suitable for marine applications, including ski, economy, and general performance use.

Image 1: The Comp Cams SK12-210-2 kit components, including the camshaft, a set of hydraulic lifters, and the timing chain with sprockets. These components are crucial for engine valve timing and operation.

3. Safety Information

Always prioritize safety when working on engine components. Failure to follow safety precautions can result in serious injury or damage to the vehicle.

• Wear appropriate personal protective equipment (PPE), including safety glasses and gloves.
• Ensure the vehicle is securely supported on jack stands or a lift.
• Disconnect the battery before starting any work.
• Work in a well-ventilated area.
• Keep all tools and components organized to prevent accidents.
• Consult a professional mechanic if you are unsure about any step of the installation process.

4. Installation (Setup)

Proper installation is critical for the performance and longevity of your camshaft kit. It is highly recommended that installation be performed by an experienced mechanic or automotive professional.

4.1 Pre-Installation Checks

• Verify that the SK12-210-2 kit is compatible with your specific Chevrolet Small Block engine. This kit is not suitable for LT1/LT4 engines or engines equipped with roller lifters from 1985 and newer.
• Inspect all components for any signs of damage or manufacturing defects before installation.
• Ensure you have all necessary tools and additional assembly lubricant, as the included packet may be minimal for a complete installation.

4.2 Installation Steps (Summary)

1. Remove existing camshaft, lifters, and timing set according to vehicle service manual procedures.
2. Thoroughly clean the engine block and all related components.
3. Apply a generous amount of the provided assembly lubricant to the camshaft lobes and lifter bases. This is crucial for preventing wear during initial engine startup.
4. Carefully install the new camshaft, ensuring it slides smoothly into the cam bearings.
5. Install the new hydraulic lifters into their respective bores.
6. Install the new timing set, ensuring proper alignment of timing marks as per the engine manufacturer's specifications.
7. Reassemble the engine components, paying close attention to torque specifications for all fasteners.

4.3 Camshaft Break-In Procedure

A critical step for flat tappet camshafts is the break-in procedure. Failure to properly break in the camshaft can lead to premature wear and failure of the camshaft and lifters.

• After initial startup, immediately bring the engine RPM to 2,000-2,500 for the first 20-30 minutes.
• Vary the engine speed within this range, avoiding prolonged idle or high RPMs.
• Ensure adequate oil pressure throughout the break-in period.
• Use a high-quality engine oil with appropriate ZDDP (Zinc Dialkyldithiophosphate) content, especially for flat tappet camshafts, to provide necessary anti-wear protection.

5. Operating Guidelines

The Comp Cams SK12-210-2 is designed for an optimal operating range of 1,500-5,500 RPM. Within this range, the camshaft provides a noticeable performance improvement for street applications and marine use.

• Expect a characteristic "choppy" idle due to the camshaft's profile.
• The camshaft is compatible with stock torque converters for street applications.
• For marine applications, this cam is suitable for ski, economy, and general performance needs.
• Monitor engine vacuum, as performance camshafts can sometimes result in slightly lower manifold vacuum compared to stock.

6. Maintenance

Regular maintenance is essential to ensure the longevity and performance of your Comp Cams SK12-210-2 kit and your engine.

• Oil Changes: Adhere to your engine manufacturer's recommended oil change intervals. Use high-quality engine oil, especially one formulated for flat tappet camshafts, to protect against wear.
• Valve Train Inspection: Periodically inspect valve train components for proper operation, excessive wear, or unusual noises.
• Timing Check: Ensure engine timing remains accurate.

7. Troubleshooting

This section addresses common issues that may arise after camshaft installation.

If issues persist, consult a qualified automotive technician or contact Comp Cams technical support.

8. Specifications

9. Warranty and Support

For specific warranty information regarding your Comp Cams SK12-210-2 kit, please refer to the documentation included with your product or visit the official Comp Cams website. Warranty terms and conditions are subject to change by the manufacturer.

For technical assistance or support, please contact Comp Cams directly through their official channels. Ensure you have your product model number (SK12-210-2) and purchase details available when seeking support.