BCBC 391 Engine Timing Chain

Engine Timing Chain Overview

This Melling engine timing chain, part number 391, is a standard replacement option for a wide range of Ford and Lincoln applications. It uses a silent chain design with hardened steel construction for stock-style engine timing service.

Key Features

• Standard replacement timing chain for domestic and import vehicle applications
• Silent chain design for smooth timing operation
• Hardened steel construction
• Single-row design with 122 links
• No timing marks on the chain
• Made in the USA

Detailed Description

Part number 391 is a Melling timing chain built for stock engine timing applications where a direct replacement chain is needed. The chain uses a silent, single-row design with hardened steel construction and a 0.375-inch pitch, giving it the core specifications expected in a standard replacement timing set-up. Melling offers this chain as part of a broad coverage range for domestic and import vehicle applications, including Ford F-150, Ford E-350 Super Duty, and Lincoln Navigator fitments.

The Melling 391 timing chain is suited for stock engine service on many Ford and Lincoln platforms, including long-running truck, van, chassis, and SUV applications. This part cross-references Cloyes C391 for the same application.

What This Part Is Used For

• Replacing a worn or stretched engine timing chain
• Restoring proper camshaft and crankshaft synchronization
• Addressing timing noise from chain wear
• Supporting stock engine timing service during rebuilds or maintenance
• Replacing a chain with missing or incorrect timing marks

Installation Notes and Tips

Verify engine application, timing set configuration, and chain length before installation. This chain is listed as a standard replacement part and does not include timing marks. Confirm the engine’s stock timing requirements and inspect related timing components during service to ensure proper alignment and operation.

Quality Assurance

Melling manufactures this timing chain in the USA using hardened steel and established production standards for engine valvetrain components. Part number 391 is built for stock replacement use across a broad application range.