Replacement crank trigger wheel for big block Chevy 8 In. balancer. For a long time racers have known that one of the best things to do to an engine to improve its performance is to stabilize ignition timing. The MSD flying magnetic crank trigger system does exactly that by using four magnets embedded in an aluminum wheel. This is the replacement part for the aluminum crank trigger wheel.

Product Features:

• Accurate Trigger Signals
• Non-Magnetic Pickup Cannot Be False Triggered
• Parts CNC Machined Aluminum In Red Anodized Finish
• Wide Range Of Timing Adjustment