6421 - MSD 6-Series Ignition

The High-Powered Spark You Need at the Low Price You Want

MSD 6-Series Ignition Controls:

Deliver full-power multiple sparks

Use capacitive discharge circuitry

Work with 4, 6 (some even-fire only), and 8-cylinder engines

Trigger from breaker points, amplifiers, or magnetic pickups

Work on almost any vehicle with a 12 to 18 volt electrical system

Accept an MSD timing accessory

6-Series Ignition Controls share similar output specs to ensure complete combustion of the air/fuel mixture yet, to compare ignition variations, click More Info below in the part number descriptions. Whether daily driver, weekend warrior, or marine maverick, after you know your vehicle's purpose, MSD has the ignition box to improve its performance.

Click here for a comparison between 6AL and Street Fire Ignition Boxes.

Get a FREE Blaster 2 Coil with an MSD 6AL-2 (121-6421) ignition box