The MSD 8610 Ignition Crank Trigger Kit is a high-precision timing control system designed for serious performance enthusiasts and professional racers. This kit provides extremely accurate ignition timing by directly measuring crankshaft position, offering significant advantages over traditional distributor-based systems.

Technical Specifications

• Trigger Wheel Diameter: 6.5 inches
• Trigger Wheel Material: Billet aluminum
• Number of Teeth: 4 (one per 90° of crankshaft rotation)
• Sensor Type: Magnetic pickup
• Compatibility: Fits small block Chevy engines

Key Features

1. Billet Aluminum Trigger Wheel: Precision-machined for accuracy and durability.
2. 4-Tooth Design: Provides a timing signal every 90° of crankshaft rotation for precise control.
3. Magnetic Pickup Sensor: Offers reliable timing signals even at extremely high RPMs.
4. Adjustable Sensor Mount: Allows for fine-tuning of sensor position relative to the trigger wheel.
5. Universal Mounting Hardware: Includes brackets and fasteners for versatile installation options.
6. High-Quality Wiring Harness: Ensures reliable electrical connections in harsh racing environments.

Performance Benefits

• Eliminates timing fluctuations associated with chain stretch or gear lash
• Provides consistent ignition timing at all engine speeds
• Allows for more aggressive timing curves without risk of detonation
• Improves engine response and power output
• Enables precise timing control for forced induction applications

Applications

• Drag racing engines
• Circle track racing
• High-performance street cars
• Marine racing
• Pulling tractors
• Any small block Chevy requiring precise ignition timing

Installation

• Requires drilling and tapping of the harmonic balancer for trigger wheel mounting
• Sensor bracket mounts to existing engine block bolts
• Compatible with most MSD Ignition controls and many aftermarket ECUs

Durability

• Billet aluminum construction resists flexing at high RPMs
• Weatherproof sensor design for reliability in all conditions
• Heavy-duty mounting hardware for secure installation

The MSD 8610 Ignition Crank Trigger Kit represents a significant upgrade for any high-performance small block Chevy engine. By providing extremely accurate timing signals directly from the crankshaft, this system allows for optimized ignition timing under all conditions, potentially unlocking additional horsepower and improving overall engine performance and reliability.