Not sure of the exact gauge but you what larger than normal. About the size of the ground wire from battery to the fender if not thicker and must be braided (not solid core).
Engine Test Stand Playlist: https://www.youtube.com/playlist?list=PLwoxyUwptUcdqEb-o2ArqyiUaHW0G_C88 restoring my 1968 Firebird 400 HO convertible (Firedawg) 1965 Pontiac Catalina Safari Wagon 389 TriPower (Catwagon) 1999 JD AWS LX Lawn tractor 17hp (my daily driver) 2006 Sequoia 2017 Murano (wife's car) 202? Electric car 203? 68 Firebird /w electric engine 2007 Bayliner 175 runabout /w 3.0L Mercuiser__________________________________________________________
Thanks, I was actually thinking of just putting a 24" 6 ga battery wire on. Don't think overkill is a bad thing on this. Someone in the past wired the front lamp harness directly to the battery, after cutting out the link.
If my memory is correct I would say 12awg. 10awg at the most. I can look tonight.
You'll struggle using 6awg. That's pretty stiff even in braided copper.
General rule of thumb.
12 AWG - maximum of 25 Amps in free air, maximum of 20 Amps as part of a 3 conductor cable; 10 AWG - maximum of 40 Amps in free air, maximum of 30 Amps as part of a 3 conductor cable.
6awg you'd be able to run your range or dryer at 60amps
But down there in the desert heat, you might need that much amperage running that A/C at full power!
I used to be indecisive. Now I'm not sure. I feel like I am diagonally parked in a parallel universe. 1968 400 convertible (Scarlet) 1976 T/A - 455 LE (No Burt) 1976 T/A New baby, starting full restoration. 1968 350 - 4 speed 'vert - 400 clone (the Beast!) 1968 350 convertible - Wife's car now- 400 clone (Aleutian Blue) (Blue Angel) 2008 Durango - DD 2008 GXP - New one from NH is AWESOME! 2017 Durango Citadel - Modern is nice! HEMI is amazing! 1998 Silverado Z71 - Father-daughter project 1968 400 coupe - R/A clone (Blue Pearl) (sold) 1967 326 convertible - Sold 1980 T/A SE Bandit - Sold
