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Mod | | | Forums66 Topics128,080 Posts1,056,060 Members48,433 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#92184 06/21/2005 6:00 PM | Joined: May 2005 Posts: 323 Shop Shark | | Shop Shark Joined: May 2005 Posts: 323 | I just brought home a 56 GMC with the inline 6 that has a 6volt system. I'm looking for tips and what all I need to change out to convert it to a 12 volt. Thanks | | |
#92185 06/22/2005 3:38 AM | Joined: Dec 2002 Posts: 571 Shop Shark | | Shop Shark Joined: Dec 2002 Posts: 571 | This link is in the tech tip section. 12 Volt conversion | | |
#92186 06/22/2005 5:50 AM | Joined: Feb 2000 Posts: 988 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 988 | Why are you changing to 12 volts? With a little work (less then converting) your 6 volt system will work just fine.
Brian Moore
1949 3100 5 window Deluxe
"Today is better than yesterday, but not as good as tomorrow"
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#92187 06/22/2005 6:47 AM | Joined: Jul 2003 Posts: 586 Shop Shark | | Shop Shark Joined: Jul 2003 Posts: 586 | If your upgradeing your radio or puting in modern day features I say ok. If your only doing it to help turn over your engine, I say don't do it. The factory engines turn over just fine with a good grounded 6V system. Cecil...... | | |
#92188 06/22/2005 2:22 PM | Joined: May 2005 Posts: 323 Shop Shark | | Shop Shark Joined: May 2005 Posts: 323 | Thanks guys
I guess i should see if the engine turns first. | | |
#92189 06/22/2005 6:39 PM | Joined: Mar 2005 Posts: 1,029 Member | | Member Joined: Mar 2005 Posts: 1,029 | Chevy went 12V in 1955. When did GMC? | | |
#92190 06/23/2005 4:57 AM | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | GMCs with V8s went 12V in 1955. The sixes stayed with 6V for one more year. | | |
#92191 06/23/2005 6:18 AM | Joined: Mar 2005 Posts: 1,029 Member | | Member Joined: Mar 2005 Posts: 1,029 | Isn't 1956 one more year? | | |
#92192 06/24/2005 4:28 PM | Joined: Jan 2000 Posts: 124 Shop Shark | | Shop Shark Joined: Jan 2000 Posts: 124 | If you want to make life simple order a copy of the Official 12-volt Conversion Guide from Fifth Avenue. The cost is ten dollars post paid. It is a simple step by step guide to doing a 12-volt conversion the right way. It explains what you need to do in simple step by step terms... then also gives you the "why it works that way... so you know how things work and are not doing it just because.... and never knowing why. Take it from the guy who has been then and done that for the past 20 years. Dang...he must be getting old!!
Randy | | |
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