What is the highest amperage factory alternator?
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Joined: Oct 1999
Posts: 1,112
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From: W. Kentucky
Car: 83 Z-28
Engine: 406
Transmission: TH350
Axle/Gears: 3.70
What is the highest amperage factory alternator?
I'm planning on swapping my alternator for a higher amperage one. I know of some 140 amp ones but are there any higher? Maybe like on a late model or something. The brackets would be different I'm sure but I can fabricate brackets. Anyone know the amperage ratings on the new LS powered Chevy truck alts. What about any non GM one. Any info is appreciated.
not an expert on this but...
i think there are alternators more than 140A. The Car Audio forum would probably have members that know about this. If you're doing this for car audio also look into thicker power wires, capacitors or an extra battery. If you run a 2nd battery in the trunk, use a marine battery, its less toxic.
gm's new vehicles have nothing more powerful than a 140A stock, anyway.
i think there are alternators more than 140A. The Car Audio forum would probably have members that know about this. If you're doing this for car audio also look into thicker power wires, capacitors or an extra battery. If you run a 2nd battery in the trunk, use a marine battery, its less toxic.
gm's new vehicles have nothing more powerful than a 140A stock, anyway.
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
highest autozone had when i replaced my factory one was 108 amp and what i'm running.
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