Chrysler 383-440 Timing Tab

The Chrysler 383-440 Timing Tab is an essential component for anyone performing ignition timing adjustments or engine diagnostics on classic and high-performance Chrysler big-block engines. This precision-engineered tab serves as the fixed reference marker on your engine block, allowing you to accurately set initial timing when working with your harmonic balancer or timing indicator. Whether you're tuning a street engine, rebuilding a muscle car, or diagnosing ignition issues, this timing tab is critical for establishing proper top-dead-center (TDC) alignment and achieving correct spark advance.

Designed specifically for Chrysler 383 and 440 cubic-inch big-block engines, this timing tab mounts directly to the engine block and works in conjunction with your harmonic balancer's timing degree markings. The tab's precise positioning ensures repeatable, accurate readings when you're setting base timing with a timing light or dial-back method. Its compact design (3.95 x 1.4 x 8.85 inches) allows for easy installation in tight engine compartments, while the lightweight construction (0.15 lbs) means zero impact on engine dynamics. This is a wear-resistant component that maintains its accuracy through countless engine starts and adjustments, making it an investment in long-term tuning reliability.

This timing tab is indispensable for Mopar enthusiasts, mechanics, and performance builders working on 383 or 440-powered vehicles. It's equally valuable during initial engine break-in, carburetor synchronization, or when upgrading to performance ignition systems that demand precise timing verification. If you're replacing a damaged or missing timing tab, upgrading your ignition system, or simply need an accurate reference point for baseline timing settings, this Chrysler-specific component delivers the precision required for proper engine operation and maximum performance.