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07-09-2010, 04:33 PM
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Alternator question
Due to my current build, it may be necessary to move my alternator from the passenger side to the driver side. My question is, are the alternators the same for pass side and driver side? It seems that it would spin the opposite direction. I am adding a 6-71 to my 454 and I am having trouble mounting my alternator.
I hope this is not a dumb question Anyone with any expierence, please chime in Thank you. Steve Last edited by NOlowrider; 07-09-2010 at 04:56 PM. 
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07-09-2010, 05:32 PM
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Simple answer - no, they spin the same direction, even its a serpentine belt.
Bruce
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07-09-2010, 05:41 PM
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Doesn't matter what side of the motor it is on, it will still spin in the same direction if it is turned by the inside of the belt(think about it for a second, where is the power steering pump...?). Only way to spin it backwards is to use the outside of the belt, like some serpentine belt systems turn the water pump, or mount it backwards with the back of the alternator facing the front of the car.
Still doesn't matter though... an alternator doesn't care which direction it is spun, it will still produce. I have even seen some mounted backwards on some blown applications. One that comes to mind was on a Vortech centrifugal blown engine that runs at the track here in Michigan. Mount it wherever you have space, it will work running in either direction. 
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07-09-2010, 06:12 PM
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Eric, Bruce Thank you very much for your help. I just was not sure. Looks like I am going to have to mount it on the drivers side. I found a March set on Summit I guess I will have to get. This whole build is costing me a small fortune.
Didn't realize there was so much to do. I planed for most of it, ie. forged crank, blower pistons, blower cam. But the small bracket things are kicking my butt. I am thinking about ditching the PS for a manual to save $$$. Later on I will add it back. The blower snout I was sent was too short, had to send it back. Had to switch to a short water pump, it goe on and on. Thanks again for your help Steve
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07-09-2010, 10:36 PM
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Other than the orientation of the cooling fins on some alternator's pulleys, the direction of rotation doesn't matter.
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07-11-2010, 03:39 PM
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Thank you for the help.
I appreciate your time.
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