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> 100/70 amp Powermaster Polished Finish Alternator 1978-1979
100/70 amp Powermaster Polished Finish Alternator 1978-1979
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Powermaster Motorsports is the leader in high performance OEM replacement alternators for the automotive industry.
Modern accessories can take their toll on a vehicle's electrical system. Powermaster offers High Amperage Alternators to give your electrical system the extra boost it needs. If you have added lights, winches, or other power hungry accessories, Powermaster offers easy to install high amp upgrades.
Note that the alternator comes with a single-groove pulley. If you have a double-groove pulley, you will need to change them over (they are a direct swap). Also, if you have an older model vehicle with an external voltage regulator, you can use this alternator with some minor wiring changes under the hood. This will allow you to remove the external regulator and associated wiring too!
These are rebuilt here in the USA!
Is this more powerful than the original unit as I've been having insufficent voltage issues mainly while idling with a holley sniper or should I get the larger one, I will be running a optima 34 red top battery with 815 cca? Thanks
Most originals were in the 65-75 amp range at max output. This is 70amp at idle, and 100amp at just above idle. This will suffice with the Sniper set up. If you plan on additional power upgrades (stereo system, external lighting, winch, etc), I'd go up a level.
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1978-1979 J-10 / J-20
Each alternator is tested before shipping by Powermaster
100 / 70 Amp
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