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Old 06-21-2015, 03:48 PM   #1
ericsysmin
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Does the LS3 oil pan support a 4.0" stroke?

I can't seem to find this information anywhere, but found that some pans only support ~3.622 stroke. Does anyone know if the stock LS3 pan supports a 4.0" stroke? Will I need a windage tray as well?
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Old 06-21-2015, 04:46 PM   #2
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I think Chevrolet performance sells the windage trays for different strokes. Pan should be fine.

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Old 06-21-2015, 07:03 PM   #3
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The pan will.as for the tray u can modify it to be compatible

The rod bolts hit
Iirc 10 7/16 washers (2 per main stud) will also put the tray far enough depending on the type of rods and rod bolts
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Old 06-22-2015, 02:37 AM   #4
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I will just order the LSX 4.0" Windage tray then. Thanks guys I wasn't sure and couldn't find the answer anywhere. I do know Moroso had one that supported up to 4.125"
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Old 06-22-2015, 06:26 AM   #5
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Quote:
Originally Posted by adam0311 View Post
The pan will.as for the tray u can modify it to be compatible

The rod bolts hit
Iirc 10 7/16 washers (2 per main stud) will also put the tray far enough depending on the type of rods and rod bolts
Yes this is what we did for the LS3 pan and tray to fit a LSX 454 which has a 4.125" stroke.
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Old 06-22-2015, 08:42 AM   #6
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Yes this is what we did for the LS3 pan and tray to fit a LSX 454 which has a 4.125" stroke.
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Old 06-22-2015, 04:00 PM   #7
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Ah, good to know. I just bought the 4.0" Windage tray, so looking forward to this. LSA Supercharged 427 LSX.
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Old 06-22-2015, 04:47 PM   #8
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I'm curious... does the stock LS3 come with a windage tray?
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Old 06-22-2015, 07:50 PM   #9
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Quote:
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I'm curious... does the stock LS3 come with a windage tray?

Yes all LS engines come with a windage trays.
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Old 06-23-2015, 06:24 PM   #10
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Mast makes a windage tray specifically for stroked ls3, and it does not require using washers which may make the pump have the pickup tube shoved too far down into the bottom of the pan which can lead to another problem.
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Old Yesterday, 11:15 AM   #11
ericsysmin
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Found out that I can get a LSX 4.000" windage tray.

Sent from my SM-G900V using Tapatalk
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Old Yesterday, 12:52 PM   #12
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Just for general information. I have the Holley 302-1 oil pan and that one does support a 4.125" stroke as that is what is in my motor. I also used the deeper GM Performance windage tray to clear the longer stroke. No washers necessary with it but it does cost more than washers.
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