Using 4 AWG for Big Three

[qkassidyw 10+ year member]

I want to do the big three and I have a ton of 4 AWG laying around (with crimps) and don't want to spend the money on 1/0 gauge. Will doing two runs of 4 Gauge work? I was looking at my stock wiring and it is smaller than four gauge so I am assuming it will be an upgrade no matter what...

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[DBDRAGGUY 10+ year member]

I want to do the big three and I have a ton of 4 AWG laying around (with crimps) and don't want to spend the money on 1/0 gauge. Will doing two runs of 4 Gauge work? I was looking at my stock wiring and it is smaller than four gauge so I am assuming it will be an upgrade no matter what...

It will work just fine.

It will be a improvement over the 8-10 guage factory stuff.