This MSD Flying Magnet crank trigger kit pairs a Hall-Effect sensor with a billet aluminum trigger wheel to deliver the most accurate way to trigger EFI on Ford small block Windsor engines (289/302/351W). Rigid aluminum mounting bracketry and hardware keep the assembly from flexing, preventing timing fluctuation.Specifications: Fitment: Ford SBF Windsor, 289/302/351W Diameter: 6.562 in. Color: Red Sensor Type: Hall Effect Operating Voltage: 5-20V Sensor Dimensions: 3/4 x 2 in. Wheel Width: 3/8 in. Warranty: Manufacturer's Limited 1 Year Warranty Part Number: 86401 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).FAQWhat engines does the MSD 86401 crank trigger kit fit?It's designed for Ford small block Windsor engines, 289/302/351W.What sensor does this kit use?A 3-wire Hall-Effect sensor that's less susceptible to noise interference than magnetic sensors.Why choose a Hall-Effect crank trigger kit?It's the most accurate way to trigger EFI, sending a clean signal for every firing.Is the MSD 86401 legal for street use?No. It is coded for Racing Use Only and cannot be installed on an emissions-controlled street vehicle.{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What engines does the MSD 86401 crank trigger kit fit?","acceptedAnswer":{"@type":"Answer","text":"It's designed for Ford small block Windsor engines, 289/302/351W."}},{"@type":"Question","name":"What sensor does this kit use?","acceptedAnswer":{"@type":"Answer","text":"A 3-wire Hall-Effect sensor that's less susceptible to noise interference than magnetic sensors."}},{"@type":"Question","name":"Why choose a Hall-Effect crank trigger kit?","acceptedAnswer":{"@type":"Answer","text":"It's the most accurate way to trigger EFI, sending a clean signal for every firing."}},{"@type":"Question","name":"Is the MSD 86401 legal for street use?","acceptedAnswer":{"@type":"Answer","text":"No. It is coded for Racing Use Only and cannot be installed on an emissions-controlled street vehicle."}}]}
