Battery Relocation on a new build
 

Good afternoon...lengthy question...

Building a full custom 66..I just mocked up my Slosh Tubz and now realize that you can not use the stock battery location on the core support.... I have one battery that is mounted passenger side behind rear tire...that battery is for my air-ride and stereo. I bought a battery isolator kit to hook up so my alternator can charge both batteries, and the air-ride/stereo will not draw from my starting battery...I have a raised bed floor that opens and will be mounting my main starter battery under it, towards the front of the bed..I will be doing a complete rewire of the truck as well when it comes to that time with the American Autowire Classic update kit. So...My question is, what is the proper way to relocate my starter battery to the bed area, and make things easy for me as well when i go to do the new AAW harness...Do i run battery + to starter and Battery - to the engine block like they are now...how do I, or should I, get a + stud under the hood for other things that may need power? This is a good ol' SBC with HEI...any help appreciated greatly... Im a newbie to the electrical side

Re: Battery Relocation on a new build
 

Did you ever find a solution, or complete this batter relocation? I'm looking at the same conundrum.

Re: Battery Relocation on a new build
 

You should run a positive wire from the battery to the starter and a negative wire to the block. The distance between your battery and starter has been increased so you will need to use a larger wire. Your starter can draw over 200 amps while cranking so I would use a minimum of 2 gauge wire. 1/0 gauge would be ideal. If you do not use a circuit breaker make sure your + wire is secure and protected.
I run one ground wire from the battery straight to the block and another from the battery to the closest frame rail.

Re: Battery Relocation on a new build
 

On my 68 LS swap I mounted the battery in front of the passenger side rear wheel. As said above a well secured 1/0 positive cable to the starter solenoid stud. Then as far as grounds I run a 1/0 to the engine block. Then 1/0 from engine to the frame rails on both sides. Then smaller gauge ground wires from the core support to the frame rails. May be a bit over kill but it works for me.
See pic of battery mount.

Re: Battery Relocation on a new build
 

I have been looking into this myself and have seen starter relay solenoids that allow power only when starting so you don’t have a massive hot wire running the whole lengths of the car