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5.3 Alternator with LS1 accessories?

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Old Mar 2, 2013 | 09:21 AM
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Default 5.3 Alternator with LS1 accessories?

I've already drilled and tapped the block, and have the alternator off of my 5.3L mounted in place. I will only be running that and a F-body water pump and tensioner, and F-body balancer. I already have everything but I haven't mounted the balancer or water pump yet.

My question is ........ With the 5.3 alternator in the F-body bracket will the pulley line up where it needs to be or do I need to buy an F-body alternator?
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Old Mar 2, 2013 | 09:49 AM
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If its the small truck alterbator it will work. They just don't have the boss on the back for the small reinforcement bracket can't be bolted on.
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Old Mar 2, 2013 | 12:42 PM
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Mine is a truck alt. drill and tap the block and your good to go. I have the tap if you need it
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Old Mar 2, 2013 | 02:06 PM
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Like I said, it's already drilled, tapped and mounted. Just don't have my other accessories in yet
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Old Mar 2, 2013 | 10:04 PM
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It fits.
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Old Mar 3, 2013 | 08:10 PM
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The rear mount is beneficial when mounting on an iron block though I have never tried it without. Check out a late 90's Savana/Express van alternator. It has the rear mount similiar to the LS1, it might fit and it costs much less.
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