the big 3 is this the right way?

All all my spots for my big 3 correct? I was told for the engine block to chassis to just bolt it on a bolt on the alternator will that work? also is that the right spot for batt + to alt? thanks!

mazzasec wrote:

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I was told for the engine block to chassis to just bolt it on a bolt on the alternator will that work? also is that the right spot for batt + to alt? thanks

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Your + battery terminal is correct. 

Um - I guess you could ground the alternator chassis but I wouldn't do it that way - just upgrade your engine ground strap.  If you screw with that bolt you will loosen the alternator and screw up the tightness of the belt that runs it.  I wouldn't mess with it unless you are comfortable re-positioning your alternator.

Again, look for your engine ground strap and just upgrade that.

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"I'm finished!" - Daniel Plainview

I loosened up that bolt to ground my alternatory to the engine block and daisy chained it back to the battery -. Worked very well. Did not interfere with the belt tension at all.

I am kinda confused if i use that bolt on the alternator is that grounding the alternator and not grounding the engine block? Or isnt that bolt bolting the alternator onto the engine block? I just wanna do the step of engine block to chassis and i cant find the right spot to bolt the 1/0 gauge onto the engine block.

Would the bolt with circled on green work as a engine block point?

Take a picture of your whole engine bay.

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"I'm finished!" - Daniel Plainview

Go ahead and run a ground from the alternator bolt to the frame. If you remove one bolt, the alternator should stay in place and the belt wont slip off. Most alternators are held in by 2 or 3 bolts.

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godd dan it wrote:

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Go ahead and run a ground from the alternator bolt to the frame. If you remove one bolt, the alternator should stay in place and the belt wont slip off. Most alternators are held in by 2 or 3 bolts.

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So then I would be doing like a big 4 upgrade right? and hers a couple of pics of my engine bay

Here is what I did...The wire going off to the left is grounded to the alternator case/mounting bolt.



The another wire daisy chains it to the battery negative here.



I would get a meter and check different locations/bolts that you can ground to check if the resistance is not too high.

bump@@@!!

I could use a little clarification on this topic as well. The alt. positive to battery positive and battery negative to chassis are straightforward. However, I like the original poster, am not completely clear on the engine to chassis ground.

I understand that it is best to just upgrade the engine ground strap, but I'm not sure where this is located on my vehicle. Furthermore, if, as DYohn posted in the original sticky on how to do the big three upgrade, the alternator case is the absolute ground, then wouldn't it be just as good to ground the alternator case to the chassis rather than hassling with finding the ground strap?

Lastly, if it is just as good to ground directly from the alternator case, then should this ground necessarily run to the same point on the chassis that the negative battery terminal is connected to?

I grounded my alternator case to the battery negative, then grounded the battery to the body. I still have to ground the battery to the frame though.

You don't have to find the factory ground strap from the battery to the block. Just find a non-essential bolt that has a low resistance