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MAST LS3 Stroker Windage Tray/Oil Pan Hitting

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Old 08-12-2012, 11:52 AM
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Default MAST LS3 Stroker Windage Tray/Oil Pan Hitting

Help!

I'm trying to put a Mast LS3 windage tray on my LS3 Stroker. The site says instructions included, but they did not put any in the box.

The pan will not sit on the block with the Mast windage tray. It fits fine with the stock windage tray, but the pickup was a little too close to the bottom of the pan (due to the washers/spacers).

I'm assuming that the center ribs in the oil pan need to be removed to clear the tray, but before I start cutting things I figured I ask here.

Thanks,
RGKSR
Old 08-12-2012, 04:51 PM
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Mine fit fine. Maybe these pics will help, maybe not. I'm not entirely sure what your issue is though? Mine fit fine with a stock oil pan (5g camaro pan)

This is a mast tray on an LS3 lower, 4.125" stroke.




Old 08-12-2012, 07:59 PM
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Default Must be the C5Oil Pan

I guess the C5 oil pan is different. I've got a 00 FRC and the motor is an ERL 454.. I'll try and call Mast in the morning.

Thaks for the photo's

Rgksr
Old 08-12-2012, 08:02 PM
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ON the vette pans you typically have to machine down the fins/ribs in the bottom of the pan on stroker applications. this is with any windage tray when you space them down on these pans not just the Mast ones.

Last edited by JS01; 08-12-2012 at 10:45 PM.
Old 08-21-2012, 04:36 PM
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Originally Posted by JS01
ON the vette pans you typically have to machine down the fins/ribs in the bottom of the pan on stroker applications. this is with any windage tray when you space them down on these pans not just the Mast ones.
can you guys go into more detail on this? car is currently in the shop right now and the 427 stroker isnt clearing the oil pan. Its a 2000 C5 with the batwing pan.
Old 09-29-2015, 11:07 PM
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I'm having the same issue with my Mast Windage tray. It doesn't clear the rod bolts. I'm pissed off because this Windage tray is supposed to be the cure for stroker motors and its Ben a giant flipping headache. Any advice on this?
Old 09-29-2015, 11:32 PM
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I went with the GM performance parts stroker windage tray with no problems. I am running LS3 based 427 with a 4.1" stroke.
Old 09-30-2015, 07:06 PM
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you have to grind down some of the ribs in the pan, I had to on my 429 ls3 stroker
Old 09-30-2015, 08:22 PM
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I also went with oem GM corvette windage tray. It took a little bit of cutting in the front where the pick up tube meets with the pump. And then shimmed all the bolts with a couple of washers to clear the 4.000" crank.



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