Small Block windage tray ?

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cudaj380

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I was reading the How to build big inch mopar small block
book and it says the windage tray mopar offers will not
work for the 3.58" stroke and was designed for the 340
stroke. The book also said it would cause a power loss.
Anybody else have thoughts on this? I am replacing
my pan gasket on my 360 and if this is true then maybe
I should pull the windage tray as I have a 8 quart deep pan,
which is what they recommend.
 
I can't see why it would not work or cause a power loss. Open the louvers level. They came stock on later year 360 engines. I think it was a E58 code. I forget.
 
My Mopar Peformance 10:1 motor thats sitting in my garage has a windage tray that came with the short block.

Maybe they have a separate part number for 318/340 and 360 windage trays?
 
They only show one windage tray for all. It is the first time I
have seen that the tray would increase crank case pressure.
The guy that wrote the book, has worked in the Dodge Motorsports
engineering department since 1989 Jim Szilagyi. Previous to that
he worked in developing high-performance and racing parts in Mopar
performance parts group. It dose say to use the tray in the 318 or
340 with stock stroke.
 
Rumble I will take a look at it when I get the pan off.
I will check the openings on the louvers. I know when I was
building 383 motors we did do some mods to the factory
trays, by trimming and adding some return holes in the bottom.
 
Hum... That's strange. Does he say why? My 360 had one on it when I got it and I kept it on it when I rebuilt it cause I always heard they increased power. I too have always heard they came stock on the E58 engines.
 
Okay this is directly out of the book page 40:
" Windage Tray"
The windage tray sold by Mopar was designed for a crankshaft
with a 3.310" stock stroke (stock 318 and 340 stroke). Many
customers use the windage tray with the 3.580" 360 stroke.
The windage tray fits, but it does not work as well with the
longer 360 stroke. The crankcase pressure is increased when
the windage tray is used with the 360-stroke crankshaft. The
windage tray P4529790 is not recommended with a 360-stroke crank.
<end>

Moroso does not list a windage tray for a small block mopar.
I went to an old Herb Mc Candless article (realy old 1999) he used
Milodon trays which are some what adjustable. I know what the
E58 is but no clue if it came with a tray. Rumble also said he thought
they came with a tray from the factory. Maybe the problem is at high
rpm, the article does not realy tell us that though.
 
67Valiant360 said:
Okay this is directly out of the book page 40:
" Windage Tray"
The windage tray sold by Mopar was designed for a crankshaft
with a 3.310" stock stroke (stock 318 and 340 stroke). Many
customers use the windage tray with the 3.580" 360 stroke.
The windage tray fits, but it does not work as well with the
longer 360 stroke. The crankcase pressure is increased when
the windage tray is used with the 360-stroke crankshaft. The
windage tray P4529790 is not recommended with a 360-stroke crank.
<end>

Moroso does not list a windage tray for a small block mopar.
I went to an old Herb Mc Candless article (realy old 1999) he used
Milodon trays which are some what adjustable. I know what the
E58 is but no clue if it came with a tray. Rumble also said he thought
they came with a tray from the factory. Maybe the problem is at high
rpm, the article does not realy tell us that though.
Click to expand...


Milodon...sorry...part # 32230
 
Rumble also said he thought
they came with a tray from the factory.
Click to expand...
Yea, the E-58. Fishy68 echoed it as well. I just for get the code for the engine. I have one sitting in my garage now.
 
I think what the book is referring to is the sides of the MP tray on a 3.31 stroke leave a gap on the sides between the tray and the crank/rods where the oil is supposed to "spin out" and then go out the slots. On the 3.58 stroke, the tray clears the rotating assembly. But there is much less room for the oil to change direction and find it's way out the slots. Also, the longer the stroke, the more potential for windage there is. This could lead to more windage issues. The Milodon tray has a few more slots, and can be adjusted to account for the longer stroke, because it's used on studs, not bolted to the main bolt cap. You could also just space the MP one out a little using longer bolts or studs, and open up the slots slightly, and get the same effect for less $$. The best thing you can do for a longer stroke is a deeper pan.
 
i have studs that go on my MP shortblock for my windage tray, very adjustable. So what you guys are saying is that i need to just adjust it back from the crank a tad? Any spec on that?
 
There are actually 2 early stock windage trays, 1 for 340 and 1 for 360.

Then there is the universal tray used in the '82-'92 applications, which has a slotted bolt hole pattern.
These slotted trays were usually found on 318s with the Police Package, but the 360 pick-up roller engine ('88-'92) also used them.
They are also the MP Replacement/Performance trays we see now.

The differentiation from 318 to 340 & 360 is the main cap bolts on a 318 are @ 5/16" shorter in length . To compensate, the head of the main bolts are that much longer, 5/16", to make the tray edges clear the pan rail.
This is done to compensate for the shorter main cap on a 318.
DO NOT USE 318 MAIN CAP BOLTS ON A 340 OR 360!!
They are too short and thread damage will result in torquing them!

The early 360 trays are very different from the 340 trays, as they each use a different bolt pattern.
The narrower patttern is for the 340s and the wider pattern is for the 360s.
From what I can tell, the single-pattern (early) 360 trays are slightly deeper at the center to allow for the increased stroke of the 360.

Mark.
 
Mark Nixon, great history on the windage tray's thanks for
replying. Moper, what you are saying is close to what will
use to do to the 383 trays. Sounds like I could look at the
instruction sheet for the Milodon tray and see if it would
be worth modifying the factory tray I have now. I might
just go ahead and change over to the Milodon tray as I have
had thier 8 quart pan installed for several years now. Of course
that would take the fun out of modifying the factory tray.
Thanks again to everyone that has replied thus far.
67valiant360
 
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