Alternator Upgrade Wiring - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TheSeeker · 03-28-2014, 02:48 PM

Hello, I am currently installing my new 12 SI alternator to my replace my stock one. I am following the directions in this thread - http://67-72chevytrucks.com/vboard/s...d.php?t=119379

It is going failry well, however he states that there is only 3 wires running to the alternator in his harness, white red and blue. I have 4. White, red, blue, and black. I am assuming that the black is a ground? Is this ok to hook up to the alternator case as the stock one was? Or should this black wire not be there.. Thanks!

Engine: 250 IL6
Alt part # http://www.summitracing.com/parts/TFF-7127NI

03-28-2014, 02:48 PM	#1
TheSeeker Registered User Join Date: Dec 2009 Location: Glendale, AZ Posts: 337	Alternator Upgrade Wiring Hello, I am currently installing my new 12 SI alternator to my replace my stock one. I am following the directions in this thread - http://67-72chevytrucks.com/vboard/s...d.php?t=119379 It is going failry well, however he states that there is only 3 wires running to the alternator in his harness, white red and blue. I have 4. White, red, blue, and black. I am assuming that the black is a ground? Is this ok to hook up to the alternator case as the stock one was? Or should this black wire not be there.. Thanks! Engine: 250 IL6 Alt part # http://www.summitracing.com/parts/TFF-7127NI



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