Comp Cams 818-1 Roller Bearing for Small Block Chevy, Alloy, EDM Oil

Description

Product Overview

The Comp Cams 818-1 roller bearing is engineered specifically for Small Block Chevrolet engines, delivering a blend of high‑strength alloy steel construction and advanced lubrication technology. Each bearing assembly incorporates a precision‑machined roller bearing (part number 8181) that sits within a robust axle fabricated from wear‑resistant tool steel, ensuring longevity even under demanding high‑rpm conditions. The bearing’s seat height of 1.88 inches and a diameter of .842 inches provide a perfect fit for the engine’s camshaft, while the overall dimensions of 6 x 3.2 x 1.2 inches keep the component compact yet powerful. Weighing just 1.41 ounces, the unit balances lightweight design with the durability required for performance applications.

One of the standout features of this bearing is the EDM (Electrical Discharge Machining) oil injection system. This technology creates a precision‑drilled oil passage that delivers a constant, pressurized flow of oil directly to the bearing surfaces, eliminating the risk of oil starvation during extreme engine loads. Coupled with needle bearings that are meticulously sorted by size, the assembly achieves an even distribution of loads across the rollers, reducing wear and extending service intervals. The combination of alloy steel, EDM oil injection, and precision needle bearings makes the 818-1 bearing a reliable choice for both street and race environments.

Usage

This bearing is ideal for enthusiasts who are rebuilding or upgrading a Small Block Chevy engine, whether for daily driving, track days, or competitive racing. Its design accommodates high‑performance camshaft profiles, allowing for increased lift and duration without compromising bearing integrity. The constant oil flow provided by the EDM injection system ensures that even under sustained high‑rpm operation, the bearing surfaces remain well‑lubricated, reducing friction and heat buildup. Installers will find the bearing easy to fit thanks to its standard dimensions and the inclusion of clear mounting instructions. Once installed, the 818-1 bearing supports smooth camshaft rotation, contributing to improved engine breathing, power delivery, and overall reliability.

In addition to performance builds, the bearing is suitable for classic restoration projects where maintaining original specifications is crucial. Its OEM part number (818-1) matches the original equipment, ensuring compatibility with factory‑spec camshafts and housings. Whether you are restoring a vintage Chevrolet hot rod or building a modern high‑output engine, the Comp Cams 818-1 bearing provides the confidence that comes from a component designed with both heritage and cutting‑edge technology in mind.

Why Choose Us

Choosing the Comp Cams 818-1 bearing means selecting a product backed by decades of engineering expertise in cam and lifter technology. Comp Cams has a reputation for rigorous testing, and each bearing undergoes a series of quality checks to verify material integrity, dimensional accuracy, and oil flow performance. The alloy steel used in the bearing body offers superior tensile strength compared to standard carbon steel, resisting deformation under high loads. Our EDM oil injection process is performed in a controlled environment, guaranteeing that each oil passage is precisely positioned for optimal lubrication.

Beyond the technical specifications, we stand behind our products with comprehensive customer support. Our technical team is available to assist with installation guidance, troubleshooting, and performance tuning advice. Should you encounter any issues, our warranty program provides replacement options, ensuring that your investment is protected. When you purchase the 818-1 bearing, you are not only receiving a high‑quality component but also gaining access to a network of experts dedicated to helping you achieve the best possible engine performance.

Key Features

• Alloy steel construction delivers exceptional strength and resistance to wear, extending bearing life in high‑rpm applications.
• EDM oil injection provides a constant, pressurized oil flow directly to the bearing surfaces for reliable lubrication.
• Precision‑sorted needle bearings evenly distribute loads, minimizing premature wear and ensuring smooth camshaft rotation.
• Wear‑resistant tool steel axle protects the roller assembly from abrasion, especially under aggressive driving conditions.
• Comprehensive after‑sales support and warranty coverage give you confidence in the durability and performance of the product.

FAQ

What engines are compatible with the 818-1 bearing?

The 818-1 bearing is designed for Small Block Chevrolet engines, covering a wide range of displacements from classic 327 ci up to modern high‑performance builds. It matches the OEM specifications for camshaft dimensions, making it a direct replacement for factory‑installed bearings.

How does EDM oil injection improve bearing performance?

EDM oil injection creates a precise oil channel that delivers pressurized oil directly to the bearing’s contact surfaces. This constant flow prevents oil starvation during high load events, reduces friction, and helps dissipate heat, which collectively enhances bearing durability and engine reliability.

Can the bearing be used in race applications?

Yes. The combination of alloy steel strength, precision needle bearings, and the EDM oil injection system makes the 818-1 bearing well‑suited for race‑grade engines that operate at elevated RPMs and experience extreme thermal cycles. Many racers trust this bearing for its consistent performance under demanding conditions.

What maintenance is required after installation?

After installing the bearing, follow the engine’s recommended oil change intervals and use a high‑quality oil that meets the manufacturer’s specifications. Regularly inspect the camshaft and bearing housing for signs of wear or oil leakage, and ensure the oil pump is delivering adequate pressure to maintain the EDM injection flow.

Is there a warranty on the 818-1 bearing?

Comp Cams provides a limited warranty on the 818-1 bearing that covers defects in material and workmanship. If you encounter any issues within the warranty period, contact our support team with the purchase details, and we will arrange a replacement or repair as appropriate.