MSD's Flying Magnet Crank Trigger is available with a Hall-Effect sensor for the most accurate way to trigger EFI on Big Block Chevrolet engines. Rigid aluminum mounting bracketry resists flex-induced timing fluctuation, and powerful magnets embedded in a 3/8 in. thick trigger wheel deliver a clean signal for every firing.Specifications: Fitment: Big Block Chevrolet Sensor Type: Hall-Effect, 3-wire Wheel Diameter: 8 in., 3/8 in. thick billet aluminum Wheel Width: 3/8 in. Sensor Dimensions: 3/4 x 2 in. Operating Voltage: 5-20V Includes: Adjustable timing pointer Color: Red Warranty: Manufacturer's Limited 1-Year Warranty Part Number: 86201 Compliance: This part is legal for sale and use on Racing Use Only Vehicles — competition vehicles that are not registered and never operated on the street. It is against the law to install this part on an Emissions Controlled Vehicle (1966-and-newer California-certified or 1968-and-newer federally certified vehicles).FAQWhy choose the Hall-Effect version of the MSD Big Block Chevy crank trigger?The 3-wire Hall-Effect sensor is the most accurate way to trigger electronic fuel injection and is less susceptible to noise interference.What is the wheel thickness on the MSD 86201?The trigger wheel is 3/8 in. thick billet aluminum.Is installation different from a standard MSD crank trigger kit?No, it installs the same easy way as traditional MSD Crank Trigger Kits.Is the MSD 86201 legal for street use?No, it is legal for Racing Use Only vehicles.{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Why choose the Hall-Effect version of the MSD Big Block Chevy crank trigger?","acceptedAnswer":{"@type":"Answer","text":"The 3-wire Hall-Effect sensor is the most accurate way to trigger electronic fuel injection and is less susceptible to noise interference."}},{"@type":"Question","name":"What is the wheel thickness on the MSD 86201?","acceptedAnswer":{"@type":"Answer","text":"The trigger wheel is 3/8 in. thick billet aluminum."}},{"@type":"Question","name":"Is installation different from a standard MSD crank trigger kit?","acceptedAnswer":{"@type":"Answer","text":"No, it installs the same easy way as traditional MSD Crank Trigger Kits."}},{"@type":"Question","name":"Is the MSD 86201 legal for street use?","acceptedAnswer":{"@type":"Answer","text":"No, it is legal for Racing Use Only vehicles."}}]}
