olds 307 and 403

I am planning running the Mallory 6AL box with my Mallory Magnetic Breakerless distributor. I have the proper Mallory and an Accel 1500 ohm primary resistance coil. I have to change the coil with a lower primary resistance, is oil filled or epoxy the way to go? Where was the stock mounting point? I am thinking of mounting it on the fire wall. I want to stay round, Pertronix Ignitor 2, Accel or MSD, I am considering.

Yellowstatue

The stock mounting place for the coil is just to the passenger side of the distributor. There is a threaded hole on the intake for the bolt to hold the clamp.

olds 307 and 403

Thanks

RocketV8

Do you mean 1.5 ohm primary resistance? 1500 is a lot...

Anyway, I have always used standard oil filled coils without problems (with stock and Ignitor I ignition systems). Then I bought an Accel coil that leaked oil new from the box so I decided to try an epoxy coil. Been using it for three years without a hickup now (Ignitor I lobe sensor system).

I accidentally ordered the wrong coil (Flame-Thrower II instead of one) so I added a 0.8 ohm ballast resistor. Works like a charm.

olds 307 and 403

Yah, sorry 1.5 ohm. I am considering the ignitor 2 coil. I will be running the ballast resistor to the magnetic breakerless, the 6AL box needs a lower resistance coil.

Olds442redberet

Just signing in so I can learn from this thread and your project. I am switching my ignition system out for a Mallery Unilite with a MSD coil. I plan on running it for a while before deciding whether or not to switch to a Mallory Ready to Run distributor.

olds 307 and 403

Does the Unilite require the same coil resistance? That Accel Super Stock coil, if it is the points replacement works for the Magnetic Breakerless. I just had misfires at high rpm, otherwise worked fine.

Fun71

Epoxy coils will not dissipate heat as well as oil filled coils. This could lead to overheating and premature failure

olds 307 and 403

Thanks, I kind of wondered if the epoxy would get hotter.