C4 Oil Cooler Packages
Thread Starter
Team Owner
Joined: Sep 2003
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From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
C4 Oil Cooler Packages
If I'm not mistaken there were two OEM cooling packages?
One setup (Z51) circulated water around the base of the oil filter.
Another directed oil to a conventional cooler grill in front of the radiator?
I'm looking for info, RPO or diagrams of the second configuration.
Thanks
One setup (Z51) circulated water around the base of the oil filter.
Another directed oil to a conventional cooler grill in front of the radiator?
I'm looking for info, RPO or diagrams of the second configuration.
Thanks
Melting Slicks
Joined: Sep 2008
Posts: 2,376
Likes: 111
From: Cherokee National Forest TN
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"I'm looking for info, RPO or diagrams of the second configuration"
Group 1.54 includes engine oil cooler
84, part # 3028451 3-92 price = 218.00
85-91, (L98) # 14084369 = 218.00
90-92 (LT5) #14104653 = 255.00 Note: The LT5 cooler may fit beyond the 92 model year. My parts book stops at 92.
I can scan the illustration if needed but it will be later today.
Last edited by Churchkey; Dec 11, 2011 at 02:17 PM. Reason: add info
Thread Starter
Team Owner
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From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
But..... I usually see oil temps ten to fifteen degrees over water once the engine reaches 195.
This (86eA4) being a basically stock motor driven normally.
Last edited by JrRifleCoach; Dec 11, 2011 at 02:00 PM.
Burning Brakes
Joined: May 2008
Posts: 1,008
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From: Greensburg PA
Did they ever use PS coolers, or only oil? I've got a cooler of some kind up front, assuming it's oil. It's on the bottom of the Rad.
I've got an unverified( no rpo codes, but it's 13" brakes, big sways, 6sp) 91 Z07.
I've got an unverified( no rpo codes, but it's 13" brakes, big sways, 6sp) 91 Z07.
Race Director
Joined: Apr 2000
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From: Texas
Other than the donut cooler on some L98 cars and the oil cooler on the LT5 that fit between the radiator and the ac condenser, there were no other oil coolers offered on the Corvette. The power steering cooler is often confused with an oil cooler.
The police package equipped Impala's had an oil cooler with their LT1s.
The police package equipped Impala's had an oil cooler with their LT1s.
Burning Brakes
Joined: May 2008
Posts: 1,008
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From: Greensburg PA
Oil coolers were an option, where did they locate them at?
I've got a cooler that sits right in between the front arm of the control arms, low to the ground. P/S or oil? I made a mistake in my last post, it's behind the radiator, not next to/below it.
I've got a cooler that sits right in between the front arm of the control arms, low to the ground. P/S or oil? I made a mistake in my last post, it's behind the radiator, not next to/below it.
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Melting Slicks
Joined: Dec 1999
Posts: 2,816
Likes: 2
From: Austin, TX
That's the PS cooler
Oil coolers weren't an option. The water-to-oil cooler was standard on L98's (the one that runs coolant to the cooler plate by the oil filter). LT1/4 cars didn't have an oil cooler and there was no option for one. LT5's had a cooler as the post above describes.
Oil coolers weren't an option. The water-to-oil cooler was standard on L98's (the one that runs coolant to the cooler plate by the oil filter). LT1/4 cars didn't have an oil cooler and there was no option for one. LT5's had a cooler as the post above describes.
Last edited by MarkBychowski; Dec 11, 2011 at 09:31 PM.
Le Mans Master
Joined: Aug 2000
Posts: 8,838
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From: Australia
Have been several posts over the years where owners have asked where to find replacements parts
only to be told is non stock setup
Post #17
http://forums.corvetteforum.com/c4-t...n-my-84-a.html
Last edited by rodj; Dec 11, 2011 at 11:09 PM.
Thread Starter
Team Owner
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From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Further research on the KC4: Its the oil/water package available on L98 Corvettes and Camaros
Last edited by JrRifleCoach; Dec 11, 2011 at 11:24 PM.
Team Owner
Joined: Feb 2006
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From: San Antonio Texas
I heard somewhere that the oil coolers left when they started using Mobil 1 in the engines. Don't know if that is fact or not. My LT4 has a huge cooler for the Pwr Steering. It also has a pretty big reservoir for the P.S. fluid. I can't emagine it ever needing that much cooling or volume because there doesn't seem to be that much P.S. boost. My other cars don't have near the reservior volume and only have a loop of tubing for a cooler. I always wondered if they started using the old oil coolers for the power steering, but as $ tight as manufacturers are I can't see them spending the money on it if they could just yank it altogether.
Team Owner
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From: Lacey WA RVN 68-69
NCM Sinkhole Donor
The KC4 oil cooler was dropped when the LT1 motor was introduced in 1992. GM went to a full synthetic that could better handle higher oil temps compared to "dino" oils. So the oil cooler components were dropped for both a weight savings and a cost savings. Got to hear that directly from Dave McLellan at a seminar back in '02.
The KC4 option was also part of the Z52 suspension package on the 87 and 88 coupes and 'verts.
The KC4 option was also part of the Z52 suspension package on the 87 and 88 coupes and 'verts.
Le Mans Master
Joined: Dec 2003
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From: Van Steel Corvettes
St. Jude Donor '12-'13
Try running 315's on a long autocross course or road course. The powersteering units are still known for overheating. I've got a friend that put insulation around his PS lines to help on road courses. DRM makes Stainless PS lines for better heat sink and if there is excessive pressure build up. It's one of the things I'll be adding to my car soon.
Safety Car
Joined: Aug 2008
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From: San Marcos CA
LT5 oil cooler might have a little too much volume for a small block oil pump. The lines would be pretty long and you wouldn't want to suck air on a corner and then have to try to refill this bad boy. The ZR-1 has a parallel flow restriction valve that ensures that it doesn't flow too much when the car is cold and won't pick up an air pocket.
Drifting
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From: Supreme Soviet Peace-Loving Pipple's Kollektive of Seattle Wa