# Coiled Again **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** volt, dodge\ **Created:** [July 17, 2009, 8:47am UTC](https://community.cartalk.com/t/coiled-again/33538 "2009-07-17T08:47:26Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Old\_and\_Obsolete](https://avatars.discourse-cdn.com/v4/letter/o/7feea3/32.png) [@Old\_and\_Obsolete](https://community.cartalk.com/u/Old_and_Obsolete)\ **Post date:** [July 17, 2009, 8:47am UTC](https://community.cartalk.com/t/coiled-again/33538/1 "2009-07-17T08:47:26Z")
I am trying to replace an old 6 volt coil and I noticed that a part number for a 6 cylinder 1942 Mopar firewall mount coil is different from an 8 cylinder, althought they appear to be he same configuration and mount. What would the differences be? Volts and Amps? How big of a difference and would substitutung be cardinal sin? ---
**Author:** ![Triedaq](https://avatars.discourse-cdn.com/v4/letter/t/65b543/32.png) [@Triedaq](https://community.cartalk.com/u/Triedaq)\ **Post date:** [July 17, 2009, 12:51pm UTC](https://community.cartalk.com/t/coiled-again/33538/2 "2009-07-17T12:51:03Z")
In 1942, the only Chrysler cars that had eight cylinder engines were the Chrysler Saratoga and the Chrysler New Yorker. This was an inline flathead eight cylinder engine. All Chrysler automobiles were 6 volt. Unless the eight cylinder cars had a resistor built into the coil as opposed to a separate ballast resistor, which I doubt is the case, I can’t imagine what the difference would be. Only one cylinder fires at a time no matter how many cylinders are in the engine, so I don’t think there would be a difference in current draw. Furthermore, I think that no Chrysler product had a dual point distributor set-up, so this couldn’t account for the difference. The Chysler 8 cylinder cars came with a semi-automatic transmission which shifted into high when one released the accelerator. When the accelerator was released, the ignition was interrupted. However, the same transmission was available on the 6 cylinder 1942 DeSoto, so this can’t have anything to do with the differnces in part numbers. I can’t see where substituting one coil for the other would make a difference.