MSD Engine Timing Tab

MSD Engine Timing Tabs: Precision Where It Counts

When it comes to dialing in ignition timing on a performance build, the reference point you use matters just as much as the ignition system itself. Engine timing tabs are the fixed or adjustable brackets mounted near the harmonic balancer that, when paired with a timing light, let you visually verify exactly where the spark is firing relative to top dead center (TDC). Without an accurate, readable timing tab, even the most sophisticated ignition box in the world is working blind.

That's precisely why serious builders turn to MSD for this small but critical component. MSD has spent more than four decades at the forefront of performance ignition — from street/strip hot rods to top-fuel dragsters — and that same engineering philosophy carries over into their engine timing tabs.

Built from Billet, Engineered for Accuracy

MSD engine timing tabs are machined from 6061-T6 billet aluminum, delivering the structural rigidity you need when you're reading timing marks at high RPM. The housings and adjustment assemblies feature a black anodized finish for corrosion resistance and long service life in the harsh under-hood environment. Unlike stamped-steel OEM-style pointers that can flex or corrode over time, MSD's billet construction keeps the reference mark exactly where you set it — run after run.

MSD's adjustable timing tabs offer a 4-degree range of movement, giving tuners the fine-trim capability to compensate for balancer tolerances or to fine-tune initial advance without having to rotate the distributor. This is especially valuable on crank-trigger setups and locked-out ignition configurations where even a single degree can separate a clean tune from a detonating one.

Application Coverage for Big Block and Small Block Builds

MSD offers timing tab fitments for popular Big Block Chevy (BBC) platforms, as well as other common V8 applications — making their lineup a go-to choice for engine builders working on classic muscle cars, street rods, and purpose-built race engines alike. Whether you're verifying base timing on a freshly assembled engine or cross-checking total advance at wide-open throttle, an MSD timing tab gives you a crisp, reliable reference mark every time.

Part of a Complete MSD Ignition System

MSD timing tabs are designed to integrate seamlessly into a broader MSD ignition ecosystem. Pair them with MSD's crank trigger systems, distributor-based ignition boxes like the iconic 6AL or 7AL-2, or a full Power Grid programmable system for complete command over your ignition strategy. As MSD's own lineup covers everything from start-retard controls and RPM-based timing curves to boost timing masters, having a trusted mechanical reference point like a billet timing tab ensures your timing light readings reflect what's actually happening at the crank.

Browse the full selection of MSD Engine Timing Tabs to find the right fit for your application, or explore the complete MSD brand page for their full range of ignition and performance products.