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belt size for ls1 with out power steering.

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Old 04-12-2013, 09:33 PM
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Default belt size for ls1 with out power steering.

what is the belt needed for this?

stock crank pulley, water pump and both idlers and stock alternator Im running.

thanks
Old 04-13-2013, 12:13 AM
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Best advice is to measure using some string and go to a parts store and buy a couple of belts that are close, take the one's that you don't use back.....
Old 04-13-2013, 09:32 AM
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I used a Dayco 52.5 inch belt (5060525) and it works perfectly with the stock stuff.
Old 04-13-2013, 10:23 AM
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Originally Posted by Asian LSX
I used a Dayco 52.5 inch belt (5060525) and it works perfectly with the stock stuff.
thanks, thats what I needed to know.

I knew somebody would give me the belt measurement because there are several guys on here with NO P/S. But run the stock **** still.

Also can you send me a pic of how you ran the belt?
Old 04-13-2013, 05:34 PM
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This is what I was told too.... NAPA # 25-060703 and they can cross reference.

belt size for ls1 with out power steering.-belt-needed.jpg
Old 04-13-2013, 06:29 PM
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you sure that belt works with stock f body accessories?
That belt is huge compared to the one listed above
Old 04-13-2013, 06:40 PM
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Originally Posted by SPOOLED UP
thanks, thats what I needed to know.

I knew somebody would give me the belt measurement because there are several guys on here with NO P/S. But run the stock **** still.

Also can you send me a pic of how you ran the belt?
I can try to get a pic tomorrow of how its ran on my actual car but this picture is how its ran around.

Old 04-13-2013, 07:19 PM
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Originally Posted by SPOOLED UP
you sure that belt works with stock f body accessories?
That belt is huge compared to the one listed above
Sorry, I'm using the truck Acc. My alt. is mounted high.
Old 04-13-2013, 07:49 PM
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thanks guys and yes 525 is the belt
Old 04-16-2013, 10:28 PM
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Anybody running this with ati 10% under driven? Need a belt myself
Old 04-16-2013, 11:17 PM
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what about 25% underdrive, no a/c, no ps and race EPW?
Old 05-31-2013, 03:34 AM
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Originally Posted by Asian LSX
I can try to get a pic tomorrow of how its ran on my actual car but this picture is how its ran around.



Is there any interference with the top alternator bolt????
If there is and I remove that top bolt what harm will it do? Or is there a better way around...like replacing that bolt with one with a shorter head..IDK.

Help, I really need to cut off my power steering...I have a huge pump leak and would much rather spend 12 bucks on a belt then 200+ for a good pump... I'm going on a trip next week.
Old 06-07-2013, 07:52 PM
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THe belt will be close to the top alternator bolt but make sure you run a small head bolt on their. A 13mm head works best or if you really want a button head with either a allen or torx setup.
It will be close no matter what but you will be fine.



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