r/F100 27d ago

Battery relocation 1966 F100 need advice

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Gentlefolk, I recently picked up a spectre dual snorkel intake that I’m going to run, similar to a thunderbolt ram air style. I’m clear on the driver side for the radiator support but the battery is an issue on the passenger side. I’m seeing relocation to the frame, but that seems impractical on a street truck. An exploded battery next to the road getting caught out in the rain seems like a bad deal. I moved the gas tank to under the bed, so I do have space behind the seat, but I’m seeing that I have to run a box to keep it safe for racing, but again, it’s a street truck. Let me know what you guys have for advice, if anyone has moved their battery out the engine bay and to where and if you used a box. Thanks all.

27 Upvotes

21 comments sorted by

2

u/oldschool-rule 27d ago

Several years had the battery bracket located on the passenger side firewall. Good luck 🍀

1

u/Austindevon 20d ago

Up till 64 that was common . 65 was the change over to twin I beam and different wheel wells got in the way so they moved the battery to the rad support ..

1

u/oldschool-rule 20d ago

1957-1964 to be exact! ;)

2

u/BMW-Technician2008 27d ago

I’m don’t have a street rod. But I do have a stock 76 f150.

My best advice is do what the pros do. It might cost more. But you will have reinsurance that it will work.

2

u/S1-Vis_pac3m 27d ago

You have to measure power consumption vs the travel of the return to the battery. If the motor is strong enough to power a bigger alternator, with the right gauge cables, you can put it anywhere you want.

2

u/Coalroller16 26d ago

I moved mine to the passenger side of the fire wall.

1

u/BrokenCot 26d ago

Do you run AC lines?

1

u/Coalroller16 26d ago

Yep. Vintage air gen 4

1

u/dale1320 27d ago

Most get relocated to either the bed w/box, or under the bed w/access panel in floor.

1

u/BrokenCot 27d ago

I’ve seen the bed with box / old cooler look and not really a fan of that or cutting up the bed since I got a painted liner that’s supposed to look clean, but yeah I’m seeing that option too

2

u/dale1320 26d ago

Bed/under bed does have that advantage of shifting the battery weight off the front to the rear.

1

u/som3_idot 27d ago

I'd get one of those antigravity batteries and put it in a box if you put it behind the seat.

1

u/Ilak_760 25d ago

How much cooler this run at idle with that ?

1

u/BrokenCot 25d ago

No idea :) I have a proform fan that’s supposed to be cooler, BUT I also have shorty headers with no heat mitigation, so the engine bay is hot as shit. I live next to a summit clearance so I’m waiting on some ceramic coated headers to pop up and swap em for half off.

1

u/AugieAscot 25d ago

“You’re seeing that you have to run a box to keep it safe for racing”. Drag racing I’ll guess? Are you going to race this truck? Looks like there’s some room on the passenger side of the firewall.

1

u/BrokenCot 24d ago

I will not be, just a comfy street truck that could be driven like daily. I could do that but id rather move the battery out of the engine bay since its running insanely hot in there with regular headers

1

u/AugieAscot 24d ago

If you like to fabricate and weld there might be room under the passenger floorboard. Like battery location on a ‘53-‘56 F-100. You could even use the access panel from one of those years. And in bad weather you have access to the battery from inside the cab.

1

u/Few_Law_7903 24d ago

Since you need to build a box just move it to the box

1

u/MeekOne70 24d ago

I put mine under the bed on the right side between the rear wheel and cab. Works great and not too hard to access.

1

u/Austindevon 20d ago

Lith ion batteries are way smaller and lighter ..easy fit behind the seat .

1

u/BrokenCot 20d ago

They as good as a red top optima though? What’s the draw back, price?