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Discussion Starter · #1 ·
When we put the 350/330 HP motor in my 57 I used a Mallory MAA4248201 distributor because of firewall clearance. This distributor uses a Mallory #609 module. When we installed the motor a friend said you ought to keep an extra module on hand as they are known to fail. Well at 25,000 miles the motor shut down while going down IH20 and the module is history. I changed the module ($70.00) and while at it decided to change the ballister resistor. Is there anything wrong in my system that would cause a module to fail with only 25,000 miles of usage? Should I have used something else that was more reliable, I thought Mallory was a good product? :confused0006:
 

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Premium Member
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When we put the 350/330 HP motor in my 57 I used a Mallory MAA4248201 distributor because of firewall clearance. This distributor uses a Mallory #609 module. When we installed the motor a friend said you ought to keep an extra module on hand as they are known to fail. Well at 25,000 miles the motor shut down while going down IH20 and the module is history. I changed the module ($70.00) and while at it decided to change the ballister resistor. Is there anything wrong in my system that would cause a module to fail with only 25,000 miles of usage? Should I have used something else that was more reliable, I thought Mallory was a good product? :confused0006:
:confused0006: good question, usually A spike will kick it out. I used to run a mallory unlite, ran it for 10 yrs, no issue, just switched to MSD cpl yrs ago
 

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Discussion Starter · #3 ·
Distributor Module

What causes "spikes". I have not been jumped off lately or even had a charger on the car?
 
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