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Aluminum oil pan??

 
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jmakinen
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PostPosted: Sat May 19, 2012 8:23 pm    Post subject:  Aluminum oil pan?? Reply with quote

Been searching, searching, searching, but can't find the answer. Hopefully someone else knows it. Do the 04-05 Impala's come with the aluminum oil pan? I know it's a Series III bottom end, but not sure if that included the aluminum oil pan. From what I understand, an aluminum oil pan would help cool the engine better, and probably be lighter. Any thoughts, opinions, anything?

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outonthetiles
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PostPosted: Sat May 19, 2012 9:09 pm    Post subject:   Reply with quote

I don;'t think the 04-05 SS had the aluminum oil pan, but don't hold me to that. They definetly had them in 05+ Grand Prix's. You'll also need the motor mount as it bolts to the oil pan instead of a bracket to the block. I believe you would need to shave a little bit off of the mount or subframe to get it to fit, but not a lot. The oil pickup is different as well, so you'll need that as well.

From what I've read, the aluminum oil pan is more structural than the steel one. I'm swapping to one in my 00 LS soon.

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jmakinen
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PostPosted: Sat May 19, 2012 9:34 pm    Post subject:   Reply with quote

well, when it happens post your results, and weigh the two & compare if you can! Any upgrade information on this forum is always a good thing Very Happy I'm always interested in anything that saves weight, and strengthens the vehicle.

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outonthetiles
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PostPosted: Sat May 19, 2012 9:51 pm    Post subject:   Reply with quote

Will do. I'm doing it because I'm swapping to a 5 speed, and I need to use the aluminum oil pan and mount for axle clearance.

I read that you can the stock motor mount with the aluminum pan, you'll just have to grind a little off of the u shaped bracket that bolts from the mount to the block. I'd use the grand prix one though, I've bent that u bracket before.

If you want another neat weight reduction, you can swap the steel front bumper support to an aluminum one from a Buick Rendesvous/ Pontiac Aztec..

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jmakinen
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PostPosted: Sat May 19, 2012 9:54 pm    Post subject:   Reply with quote

Oh, did not know of that one! I've heard of people removing them, but not swapping out for aluminum. Do you know of the weight comparison between those two?

EDIT- Found another forum where the aluminum pan was discussed:

http://rivperformance.editboar.....um-oil-pan

It is a heavier-duty cast aluminum pan, that is actually heavier than the series II oil pans. It's benefits are almost a quart more holding capacity, more structural, thicker, and overall just a better design. The only con is that it is heavier, but I think the pros outweigh the weight.

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PostPosted: Sat May 19, 2012 10:25 pm    Post subject:   Reply with quote

Not sure if all of that info's going to apply here. There were 2 different style aluminum oil pans, one for w-bodies, and one for bonnevilles. They are different oil pans and I don't think the bonneville one will work in the w platform.


I'll be doing a write up on the aztec bumper support soon.

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k6ng6r00
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PostPosted: Sun May 20, 2012 8:40 am    Post subject:   Reply with quote

The 3400 is a steel pan correct?

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PostPosted: Sun May 20, 2012 10:10 am    Post subject:   Reply with quote

k6ng6r00 wrote:
The 3400 is a steel pan correct?


3400 is a cast alum. pan.
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Bill58
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PostPosted: Sun May 20, 2012 7:50 pm    Post subject:  Re: Aluminum oil pan?? Reply with quote

jmakinen wrote:
Do the 04-05 Impala's come with the aluminum oil pan?

'05 LS = steel
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PostPosted: Mon May 21, 2012 7:01 am    Post subject:   Reply with quote

98ss wrote:
k6ng6r00 wrote:
The 3400 is a steel pan correct?


3400 is a cast alum. pan.



Yay were special! Cool Cool Cool

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PostPosted: Sun Jun 24, 2012 11:31 pm    Post subject:   Reply with quote

IMHO, the weight savings of getting an alum. oil pan vs. steel would be negligible, at best. Do it for the heat disipation and the less-likelyhood it will rust/corrode. But don't do it for "saving weight".
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Lingenfelter
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PostPosted: Mon Jun 25, 2012 11:41 am    Post subject:   Reply with quote

The Series II is a steel oil pan in all of my experience with it. L67s may be different but I beleive all NA 3800 S2's are steel oil pan.

Weight difference is going to be negligible. The bumper mod probably makes the nose a fair bit lighter, though.

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outonthetiles
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PostPosted: Mon Jun 25, 2012 11:46 am    Post subject:   Reply with quote

Yep, all Series 2's were steel. Even the first year or 2 of the S3's still had the steel ones.

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