BCBC CSL206 Engine Cylinder Liner

Engine Cylinder Liner Overview

Melling CSL206 is a standard replacement engine cylinder liner for rebuild work that requires a precise sleeve in the cylinder block. It is a universal cast iron liner built for stock applications and listed across a wide range of Chevrolet and GMC trucks and vans.

Key Features

• Cast iron construction for cylinder block repair and rebuild service
• Standard replacement grade for stock engine applications
• Universal fitment for use in multiple engine rebuild scenarios
• 7.5 in. length with 0.125 in. wall thickness
• 4.25 in. cylinder bore diameter, 4.503 in. outside diameter, and 4.22 in. inside diameter

Detailed Description

The Melling CSL206 cylinder liner is intended for engine rebuilds where the original cylinder sleeve must be replaced to restore proper bore geometry. Its cast iron construction and standard replacement design make it a practical choice for stock rebuild work. This part number, CSL206, is listed for Chevrolet and GMC applications including Chevrolet Silverado 2500 HD, GMC Sierra 3500, and Chevrolet C4500 Kodiak coverage, along with additional heavy-duty and classic truck platforms.

Melling’s Stock line focuses on replacement components for engine service, and this liner follows that approach with universal sizing and a finished replacement format. The CSL206 is also cross-referenced to L63 and SL206 for the same application.

What It Is Used For

• Replacing a worn or damaged cylinder sleeve during engine rebuilds
• Restoring cylinder wall dimensions after block wear or scoring
• Supporting stock rebuild specifications in cast iron blocks
• Addressing bore damage that prevents proper piston sealing
• Returning the engine block to serviceable machining dimensions

Installation Notes and Tips

Verify bore dimensions, liner outside diameter, and liner inside diameter before machining or installation. Because this is a universal liner, final fit depends on the engine block being serviced and the machining process used. Confirm application details against the vehicle and engine build requirements before assembly.

Quality Assurance

Melling manufactures replacement cylinder liners with quality materials and workmanship for engine rebuild service. The CSL206 is part of the Stock replacement line and is built for standard replacement use in rebuild applications.