ARC Performance Replacement HEI Distributor, Suits Big Block Chev.
General Motors’ High Energy Ignition (HEI) debuted in the 1970s to replace the long used points ignition system that had been in place. HEI systems provide a more powerful spark to the spark plugs, allowing a wider plug gap for more complete ignition of the air/fuel mixture that has been compressed in the combustion chamber. The system is remarkably simple and dependable, with a direct mounted ignition coil and only requiring a single key switched power connection to function (with a properly grounded engine block of course). This eliminates the external coil, coil mounting bracket (and the room for it), any resistor wire or ballast resistor, and the wiring between the coil and distributor.
- Complete assembled HEI distributor ready to install
- Premium high-temperature distributor cap with brass terminals
- 4340 chromoly steel distributor gear compatible with cast and steel billet camshafts
- Mechanical and vacuum advance systems, vacuum adjustable right on distributor
- GM standard 4-pin electronic ignition module included rated to 7,500 rpm
- Performance advance curve built in
- Distributor cap outside diameter of 6-inches clears most firewalls
- Service parts easily available for maintenance and repair needs
- Cast iron drive gear
- 65000 volt high energy coil
- Male terminal red cap
- Adjustable vacuum and mechanical advance
Easy 1 wire hook up with optional tach output.
AUSTRALIAN TESTED AND INSPECTED 
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