LS Oil Cooler - Plug or Not? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rowdy11 · 03-21-2020, 09:59 PM

What's everyone doing with the oil coolant port on their LS? I've seen several block off plates for sale. Are ya'll running to a cooler or not? I pulled the PS cooler from my donor LS truck but planned to use that for my PS since I'm still running hydroboost. Still planning to run my trans cooler to my radiator since I have a port for it (and the trans looks amazing thanks to having a cooler).

Thoughts on the oil cooler? Would love to see what others have done.

88Ironduke · 03-21-2020, 10:03 PM

I deleted the cooler on my 5.3/4L80E conversion. I have about 2000 miles on my swap with no issues however I'm not watching engine oil temp either. Lets see what others are doing.

Paul

ls1nova71 · 03-22-2020, 02:49 PM

I always delete them since most are just a place for an oil leak to occur. I've always been a fan of keeping the oil in the engine! They're up there with remote oil filters, and that cheap clear nylon hose they sell for oil pressure gauges. I had one of those rub through and dump all the oil out of the engine, it happens fast, cant imagine how fast it would be on a hose the size of an oil cooler line.

aknovaman · 03-22-2020, 03:21 PM

Remember, its not to be plugged.

Its a pass through, from one hole/port in the block to the other.

Last year, I had built a harness for a jeep buddy, only to have him trash a perfectly good low mileage LQ9 6.0L by bolting on a block off plate instead of a pass through.

toolboxchev · 03-22-2020, 04:03 PM

Interesting, always more than just some brackets for and LS conversion. Expensive lesson for sure.

**MDPotter** · 03-23-2020, 09:55 AM

This is what I installed. It allowed me to install the oil pressure sender that came with my New Vintage gauges and at the same time eliminated the oil cooler fitting and lines from my LQ9.

https://www.lsxinnovations.com/produ...r-dual-18-npt/

rowdy11 · 03-23-2020, 12:15 PM

Good call out on the pass through! So far, most folks bypassing a cooler it seems. I like the oil pressure sender idea. Any other approaches?

95 S_Trucker · 03-23-2020, 07:05 PM

A factory style bypass. There are a ton of trucks that left GM with this style bypass.

https://www.summitracing.com/parts/nal-12577903

03-21-2020, 09:59 PM	#1
rowdy11 Registered User Join Date: Nov 2017 Location: SLC Utah Posts: 210	LS Oil Cooler - Plug or Not? What's everyone doing with the oil coolant port on their LS? I've seen several block off plates for sale. Are ya'll running to a cooler or not? I pulled the PS cooler from my donor LS truck but planned to use that for my PS since I'm still running hydroboost. Still planning to run my trans cooler to my radiator since I have a port for it (and the trans looks amazing thanks to having a cooler). Thoughts on the oil cooler? Would love to see what others have done. __________________ 1970 K10 Shortbed LS L96 6L90 Follow the entire mess below! Lola: My Moon Shot

03-21-2020, 10:03 PM	#2
88Ironduke Registered User Join Date: Jul 2010 Location: Willingboro, NJ Posts: 489	Re: LS Oil Cooler - Plug or Not? I deleted the cooler on my 5.3/4L80E conversion. I have about 2000 miles on my swap with no issues however I'm not watching engine oil temp either. Lets see what others are doing. Paul __________________ Retired USAF - No rockets, no mortars, no bad guys shooting...No stress!!! My Build Thread: Project 72' Green http://67-72chevytrucks.com/vboard/s...d.php?t=587932

03-22-2020, 02:49 PM	#3
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,119	Re: LS Oil Cooler - Plug or Not? I always delete them since most are just a place for an oil leak to occur. I've always been a fan of keeping the oil in the engine! They're up there with remote oil filters, and that cheap clear nylon hose they sell for oil pressure gauges. I had one of those rub through and dump all the oil out of the engine, it happens fast, cant imagine how fast it would be on a hose the size of an oil cooler line. __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html

03-22-2020, 03:21 PM	#4
aknovaman Registered User Join Date: Aug 2013 Location: Tecumseh Posts: 355	Re: LS Oil Cooler - Plug or Not? Remember, its not to be plugged. Its a pass through, from one hole/port in the block to the other. Last year, I had built a harness for a jeep buddy, only to have him trash a perfectly good low mileage LQ9 6.0L by bolting on a block off plate instead of a pass through. __________________ Current project 1959 Willys = GEZR TRUK Geezer is a Latin compound word made up of two roots. Gee meaning Urine Stain and Zer meaning your pants are open! FMCDH GBU and GBA http://www.youtube.com/user/aknovaman/videos

03-22-2020, 04:03 PM	#5
toolboxchev Registered User Join Date: Jul 2015 Location: 2nd left past the stump on a dirt road. Posts: 2,629	Re: LS Oil Cooler - Plug or Not? Interesting, always more than just some brackets for and LS conversion. Expensive lesson for sure.

03-23-2020, 09:55 AM	#6
MDPotter Senior Member Join Date: Aug 2018 Location: Western Colorado Posts: 1,165	Re: LS Oil Cooler - Plug or Not? This is what I installed. It allowed me to install the oil pressure sender that came with my New Vintage gauges and at the same time eliminated the oil cooler fitting and lines from my LQ9. https://www.lsxinnovations.com/produ...r-dual-18-npt/ __________________ 1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax

03-23-2020, 12:15 PM	#7
rowdy11 Registered User Join Date: Nov 2017 Location: SLC Utah Posts: 210	Re: LS Oil Cooler - Plug or Not? Good call out on the pass through! So far, most folks bypassing a cooler it seems. I like the oil pressure sender idea. Any other approaches? __________________ 1970 K10 Shortbed LS L96 6L90 Follow the entire mess below! Lola: My Moon Shot

03-23-2020, 07:05 PM	#8
95 S_Trucker Registered User Join Date: Oct 2009 Location: . Posts: 2,187	Re: LS Oil Cooler - Plug or Not? A factory style bypass. There are a ton of trucks that left GM with this style bypass. https://www.summitracing.com/parts/nal-12577903

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