LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Cleaning the factory Oil Cooler

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Old Jan 4, 2008 | 11:39 PM
  #16  
Wild1's Avatar
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From: Orange Kounty, Kalifornia
I've been reading several threads on the square gaskets, nobody has a part number. Time to get a roll of gasket material and make our own.

If anyone has that PN let us know.
Old Jan 5, 2008 | 11:14 AM
  #17  
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From: Apopka FL
Originally Posted by Wild1
I've been reading several threads on the square gaskets, nobody has a part number. Time to get a roll of gasket material and make our own.

If anyone has that PN let us know.
the parts catalog that I have says the seal for a 1995 LT1 with an oil cooler is "bonded to the cooler" but it also has a PN listed for the seal - 14087586 - hope this helps
Old Jan 5, 2008 | 12:24 PM
  #18  
Don 97 SS's Avatar
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From: Robinson, IL
Originally Posted by Wild1
Yes, coolant travels through the lines to the radiator. The oil passes through the cooler to the filter then back through the cooler, then the block.

I'm not sure where the clogs are occuring which is why I'm curious to take it apart and inspect.
Over the years I read so many posts regarding this LT1 oil cooler system and related problems, I wonder why GM changed from the oem design on my 1990 454Ss truck where the oil is piped to the bottom of the rad. and back to the block/filter boss. Sure if you get a busted line you loose mucho oil/pressure, but not once have I read a post regarding any problems with this system on the 454SS.com board. Just be certain to replace the lines every decade or so.
Old Jan 5, 2008 | 01:59 PM
  #19  
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From: Apopka FL
Originally Posted by Don 97 SS
Over the years I read so many posts regarding this LT1 oil cooler system and related problems, I wonder why GM changed from the oem design on my 1990 454Ss truck where the oil is piped to the bottom of the rad. and back to the block/filter boss. Sure if you get a busted line you loose mucho oil/pressure, but not once have I read a post regarding any problems with this system on the 454SS.com board. Just be certain to replace the lines every decade or so.
I have a '99 Tahoe with an oil cooler that runs the oil through a cooler that is mounted in front of the radiator - it's made from some pretty durable stuff - that's what I would like to have on my Z
Old Jan 5, 2008 | 03:24 PM
  #20  
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From: Roanoke VA
Originally Posted by Wild1
ricehammer - that piece looks like it fits where the #1 is on the '95 oil cooler illustration. Is that correct? Is that the by-pass screen people are saying is getting clogged on the GM Perf Parts model?
Yes it's the #1 on the '95 oil cooler illustration. I'm not sure about the screen getting clogged though. I haven't heard about it. Matter fact, I don't remember there being a screen on the stock adapter when i replaced it.
Old Jan 5, 2008 | 04:39 PM
  #21  
OBE1 95Z28's Avatar
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From: San Diego, CA
If you haven't read this thread, it's very informative: https://www.camaroz28.com/forums/sho...ght=oil+cooler

I switched from the 95 aluminum oil cooler to the 94 steel unit after reading this with no regrets.
Old May 24, 2009 | 01:19 AM
  #22  
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Can anybody post actuall pictures of their oil coolers. I could swear i have an aluminum one on my 1994, the hoses enter the cooler at the oil filter stacked on top of each other in a vertical fashion. Thanks.
Old May 28, 2009 | 04:06 PM
  #23  
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Just wanted to let everyone know that my car is a 1994 Z28 and it def. had the new style aluminum cooler on it. It has been taken off, and i was able to screw my filter right onto the piece under the cooler by just replacing the two long bolts with shorter ones.
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