Ballast Block? - Team Camaro Tech
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post #1 of 7 (permalink) Old Aug 23rd, 09, 12:20 PM Thread Starter
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Dave
 
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Ballast Block?

My 67 has a white ballast block on the firewall. Was that the original configuration of the car when it was stock?

Somebody later put an Accel Coil in there, and I thought they might have added the ballast at that time. Thank goodness they did not cut any holes in the firewall to mount the coil. I just took it off and replaced the distributor with a Pertronix Flamethrower II distributor and coil. It says I don't need the ballast block for it, but if it was stock I would just leave it, otherwise I am going to yoink that out of there.

67 RS / SS 350 Coupe
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post #2 of 7 (permalink) Old Aug 23rd, 09, 01:30 PM
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Scott
 
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Re: Ballast Block?

Not stock.
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post #3 of 7 (permalink) Old Aug 23rd, 09, 01:41 PM
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Steps
 
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Re: Ballast Block?

The factory US GM used a resistance wire
The Factory Aussie GM (Holden) used a ballist resistor as you described.
Other than that the coil, dizzy etc are the same basic unit.

The big diff between the camaro engine and the Holden HK/HT sb 350s is the holden blocks where weathered for many yrs before machining, the dizzy curve slightly different, better Aussie made pistons, and a slighty different cam configuration....devaloping more torque and power.

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post #4 of 7 (permalink) Old Aug 23rd, 09, 05:35 PM Thread Starter
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Dave
 
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Re: Ballast Block?

So do I need a resistance wire with the new set up?

67 RS / SS 350 Coupe
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post #5 of 7 (permalink) Old Aug 23rd, 09, 05:47 PM
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Re: Ballast Block?

Quote:
Originally Posted by heyatomicdave View Post
So do I need a resistance wire with the new set up?

NO. I've installed many pertronix kits. The resistance wire or ballast is only used for old dinosaur points type ignitions. The instructions that came with the Pertronix unit should tell you not to use a ballast or resistance wire. Just use a 12V source that is hot in the run AND start position. Good luck.
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post #6 of 7 (permalink) Old Aug 23rd, 09, 06:08 PM
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Re: Ballast Block?

Be sure the resistance wire has been replaced or an alternate power source has been supplied. Hopefully that's the case if someone put a ballast resistor in there.

Dave
========================
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
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post #7 of 7 (permalink) Old Aug 24th, 09, 10:29 AM
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Re: Ballast Block?

Quote:
Originally Posted by JJ269J View Post
The resistance wire or ballast is only used for old dinosaur points type ignitions.

That's not true!....Many aftermarket electronic ignition systems require the use of either the factory resistance wire or the block type ballast resistor....For instance, I'm running a Mallory "Unilite" distributor along with a Mallory "Promaster" coil and the instructions clearly state to use the stock resistance wire or the ballast resistor.....The coil even includes a ballast resistor to hook up when wiring the distributor and coil!
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