PerTronix Ignitor Ignition Conversion Kit Points to Electronic Magnetic Trigger 12V Positive Ground - Various 8-Cylinder Applications HYPL11PA 7/8 to 5/8 in Bore

7/8 to 5/8 in Bore

1 in Extension

GM / Isuzu

Clear to Dark Smoke

CW Economy Series

PerTronix Ignitor Ignition Conversion Kit Points to Electronic Magnetic Trigger 12V Positive Ground - Various 8-Cylinder Applications HYPL11PA 7/8 to 5/8 in BorePerTronix 1183P12 Ignitor Delco 8 cylinder 12 Volt Positive 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.