MSD Low Resistance HEI Bushing (MSD8412)
Suit GM HEI style Distributor caps
MSD Low Resistance HEI Bushing (MSD8412) is not in stock at Fast Lane Spares and will ship direct from supplier
MSD Low Resistance HEI Bushing (MSD8412)
Description
Description
LOW RESISTANCE CARBON TIP-BUSH
Suit GM HEI style Distributor caps
Part Number: MSD8412
The carbon rotor button in a stock HEI distributor cap has very high resistance. When the high voltage of an MSD 7 Series Ignition is added, this resistance builds up heat and can actually melt the distributor cap. The solution to this problem is the use of the MSD Low Resistance HEI Bushing which will pass the secondary voltage from the distributor cap to the rotor without excessive heat build-up
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