PerTronix Ignitor Ignition Conversion Kit - Points to Electronic - Magnetic Trigger - 6V - Aerojet / AMC 4-Cylinder Aftercooler Rocker stud: 3/8"

Rocker stud: 3/8"

750 in Stroke

This is where all the action is

1999-2004 GMC Sierra 2500

PerTronix Ignitor Ignition Conversion Kit - Points to Electronic - Magnetic Trigger - 6V - Aerojet / AMC 4-Cylinder Aftercooler Rocker stud: 3/8"PerTronix 2541N6 Ignitor Autolite 4 cylinder 6 Volt Negative Ground. Features: Delivers twice the voltage to the spark plugs, increasing horsepower, fuel economy, and spark plug life. 2: 1 improvement over "points" in current fall time for increased coil output. Rotating cobalt magnets trigger a Hall Effect integrated circuit; Pertronix manufactures a broad range of ignition components, including distributor caps and rotors, and related components.