steveplym Posted February 28, 2009 Report Posted February 28, 2009 I thought I remember someone telling me that Petronix made a unit that would fit the flathead cars that were switched over to 12v neg ground. Seemed that one kit that fit a massey tractor would fit our cars. Anyone know or remember? Quote
greg g Posted February 28, 2009 Report Posted February 28, 2009 they have a 6 v pos version of the unit. Massey harris combine in the argicultural part of the catalog. Quote
Suddensix Posted February 28, 2009 Report Posted February 28, 2009 I thought I remember someone telling me that Petronix made a unit that would fit the flathead cars that were switched over to 12v neg ground. Seemed that one kit that fit a massey tractor would fit our cars. Anyone know or remember? Call the petronix 1-800 number and give them your distributor number and they should be able to supply you with the proper kit. It worked for me when I switched my car to 12v neg. Quote
steveplym Posted February 28, 2009 Author Report Posted February 28, 2009 Thanks Suddensix. I think I'll try to call them in the morning. Gotta get that distributor # first though. Quote
Norm's Coupe Posted February 28, 2009 Report Posted February 28, 2009 If they don't have it, here's the Crane unit for 12 Volt. The part number I added to the picture is for the 6 Volt version of the same unit. Quote
dirty dan Posted February 28, 2009 Report Posted February 28, 2009 We bought a unit for my son's '71 Bronco that was all within the distributor cap. I need to pull his cap off and see who manufactured that set-up. It wasn't a high voltage unit, it just replaced the points and condenser. Seems like it cost around $75.00 in 2003. Quote
greg g Posted February 28, 2009 Report Posted February 28, 2009 Crane has apparently closed up shop. there was a notice on another board. Quote
Frank Elder Posted February 28, 2009 Report Posted February 28, 2009 Dyna Mat is laying off......inventory must not be moving at ridiculously high prices. Quote
moparalltheway Posted February 28, 2009 Report Posted February 28, 2009 If you are using a ballast resistor it want matter. All points even on 12 volt systems are 6 volt. That is what the ballast is for. Quote
steveplym Posted February 28, 2009 Author Report Posted February 28, 2009 Refresh my memory here, if I use a 12V coil with an internal resistor there is no need to change the points? Should I go ahead and change the condenser? That is if I keep the points. I'd really like to go to Petronix, but may wait until the fall. Quote
Frank Elder Posted February 28, 2009 Report Posted February 28, 2009 You can skip pertronix and fit a 225 electronic dizzy to your flathead if you aren't worried about looking stock. Quote
Don Coatney Posted February 28, 2009 Report Posted February 28, 2009 For those who have done the Pertronix swap do you carry a spare module with you? What happens if the unit fails when you are on the road? How accessable are replacement parts? With my dual point conversion I can get replacement parts most at most any good auto parts store. Quote
Plymouthy Adams Posted February 28, 2009 Report Posted February 28, 2009 I have found that most of the dealers that carry Pertronix..DO NOT stock but CAN GET within REASONABLE 3-5 days turnaround...so carrying a spare unit or at minimum a back up regular distributor. AND for a lot of distributors..the install of the unit is INVASIVE in that the pivot post may have to be pernamently removed from the distributor making a stock distributor useless for retro fit for limp in mode..be careful and check IF this is common to your car..I will admit that with the flat 6 I have no experience but with later models this is a guarantee..I also recommend that you search out and read thier website and other websites that deal with their install..the balance of the correct coil reistance etc is imperative for long life..there are those that praise this unit and those that cuss the very idea... Quote
steveplym Posted February 28, 2009 Author Report Posted February 28, 2009 I've installed a petronix kit on a small block 283 I have and have had no problems with it for about 7 years now. I always keep the points and condenser handy in the glove box if anything goes wrong. Thought this would be a good route to go on the Plymouth. Even if I went with the original points I would have to carry a spare dizzy or extra set of points as most bubble pack auto parts stores do not have these parts in stock. Quote
Suddensix Posted February 28, 2009 Report Posted February 28, 2009 For those who have done the Pertronix swap do you carry a spare module with you? What happens if the unit fails when you are on the road? How accessable are replacement parts? With my dual point conversion I can get replacement parts most at most any good auto parts store. I have a spare points distributor in the trunk just in case. Quote
moparalltheway Posted February 28, 2009 Report Posted February 28, 2009 As long as you know the 12 volt is 6 at the points it want matter. A lot of people have trouble with the pertronix because they use a stock coil or one that is not within ohm specs. Always get the pertronix coil that is a mate to the unit. I have seen them burn up in a matter of minutes when using the wrong coil. Quote
steveplym Posted February 28, 2009 Author Report Posted February 28, 2009 Yeah using their coil is a good tip as that is what I did on the 283. Quote
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