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| SD4 oil pan (Page 1/1) |
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Lilchief
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DEC 11, 05:15 PM
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Trying to find some SD4 oil pan information. Who made the wet and dry oil pans for the sd4. And a part number would help to. I've contacted moroso and they say they've never made one for the sd4. My rods are hitting the stock pan, so more fab work.
Thanks Rick
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RWDPLZ
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DEC 11, 06:05 PM
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Hamburger and Moroso made them, Moroso's Fiero street pan was part number 2035
From the Pontiac Performance Plus SD4 Guide page 34:
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fierosound
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DEC 11, 06:48 PM
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From Pontiac Motorsports SD4 parts list
Hamburger PN 3407-1 Pan - Oval track, wet sump, Int. pump
Hamburger PN 3427 Pan - Oval track, dry sump
Hamburger PN 3435 Pan - TP-L dry sump
Hamburger PN 3407 Pan - Oval track, Ext. pump
Hamburger PN 1948 Pan - Drag aluminum
Hamburger PN 3417 Pan - Lay over
Hamburger PN 0497 Pan - Fiero street wet sump
A.R.E. PN 1220-P - Fiero dry sump pan
A.R.E. also made the external pump drives etc.
Moroso PN 2035 - Fiero Street Pan
Moroso PN 20352 - Oval wet sump pan
I think Moroso pans were only available through Pontiac
The 4-liter pan on my SD4 engine had been ball peen hammered out for cyl 1#2 rods to clear on the shallow end.
I MUST use a gasket (instead of just RTV) because the gasket thickness helps move the pan away.
But I also have the crank with the long 3.9375" stroke.
Use Fel-Pro High Performance Oil Pan Gasket Set Part #1813
------------------
My World of Wheels Winners (Click on links below)
3.4L Supercharged 87 GT and Super Duty 4 Indy #163[This message has been edited by fierosound (edited 12-12-2019).]
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fierosound
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DEC 12, 01:02 AM
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edfiero
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DEC 12, 12:25 PM
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I also am using a stock Duke pan on my SD4 with a few hammer blows to provide an extra millimeter of clearance.
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fierosound
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DEC 12, 02:56 PM
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| quote | Originally posted by edfiero:
I also am using a stock Duke pan on my SD4 with a few hammer blows to provide an extra millimeter of clearance. |
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Did you also add oil return line fittings to the stock oil pan?
 [This message has been edited by fierosound (edited 12-12-2019).]
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edfiero
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DEC 13, 06:00 AM
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| quote | Originally posted by fierosound:
Did you also add oil return line fittings to the stock oil pan?
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Yes.... as much as it pained me to drill a hole in the side of the pan, the return was installed.
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Lilchief
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DEC 16, 07:01 PM
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Talked to my engine builder today. He said it doesn't need return line because of return holes in the head. The man doing the actual work agreed. He use to race boats with a sd4 but with a Chevy head. He said it was pushing 360+ hp. Is the 437 head different than the 433 ? What's your thoughts ?
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fierosound
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DEC 16, 07:40 PM
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| quote | Originally posted by Lilchief:
Talked to my engine builder today. He said it doesn't need return line because of return holes in the head. The man doing the actual work agreed. He use to race boats with a sd4 but with a Chevy head. He said it was pushing 360+ hp. Is the 437 head different than the 433 ? What's your thoughts ? |
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I'm sure Vanderley/Huffaker had the drains from the intakes for a reason.
Probably faster drain back into the sump because oil isn't being flung around by the crankshaft in the crankcase.
Likely OK since you won't be running 8000-9000 rpm, but if the valve cover fills up, you'll know for sure.  [This message has been edited by fierosound (edited 12-18-2019).]
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edfiero
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DEC 17, 01:41 PM
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437 and 433 are definitely different. I am not sure which one flows more. But I think a major difference, if I recall correctly is that the bolt holes to the exhaust manifold are a different pattern.
One has the center holes like this:
* _ *
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While the other has holes like
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*_ *
I think both are aluminum and superior to the first SD heads that were Iron. But neither is as good as the 801[This message has been edited by edfiero (edited 12-17-2019).]
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