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Old 08-09-2019, 02:19 AM   #4
JeffB2
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Join Date: May 2010
Location: Phoenix,AZ
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Wink Re: Head light switch for a '54 converted to 12v

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Originally Posted by 51504bat View Post
Getting ready to completely rewire my '54 Ranch Wagon and convert it to 12 volts. I've read conflicting opinions on using the stock '54 6 volt headlight switch vs. using a 12 volt one from a '56/57. From what I can tell the 12 volt switch will accept the knob assembly from the '54 switch and the 12 volt unit will install with no mods where the 6 volt switch was. C&G said the '54 switch should work fine but I'm a little concerned about how the dash light dimmer rheostat in the 6 volt switch will work with 12 volts. Am I worrying about nothing or should I go with the 12 volt switch?
Here is a common issue we have run into over the years in the H.A.M.B. 1952-59 Ford Group concerning wiring up the headlight switch when converting to 12 volts. Almost all universal wiring harnesses are "GM friendly" and do not wire up the same as Fords,click on this link and go to Post # 525 to see how to solve it. https://www.jalopyjournal.com/forum/...#post-12641103 Also install headlight relays to lessen the load: http://watsons-streetworks.com/wp-co...rent-topic.pdf If you will be adding any additional circuits for extra accessories add the 70-80 relay to the ignition switch. You can also find these relays and the matching pigtails at Fry's Electronics at good prices. Worked great in my '54
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