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post #1 of (permalink) Old 10-02-2000, 05:34 PM
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External Oil Cooler

Who of you are running or have used an external oil cooler?? What brand?? How did/does it work for you?? When I built this 350, I had the block done (cam berrings, dipped, etc). It has 40lb's or so of pressure all the time, with no thermostat and around 100 degrees. When I put in a thermostat and bring the temp to 160, the pressure drops to about 20lb under slight load.

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post #2 of (permalink) Old 10-02-2000, 07:56 PM
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Re: External Oil Cooler

Chevy makes a real good one. Jegs (http://www.jegs.com) has them from $79.99 up to $263.99. Some of them have fans & thermostats.

[img]/wwwthreads_images/icons/cool.gif[/img] '87 Chevy 1/2t SWB in the making!
post #3 of (permalink) Old 10-02-2000, 10:59 PM
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Re: External Oil Cooler

I was able to get my used engine oil cooler from a 90 Chevy Police Caprice Car for about $15. This included the oil filter adapter, oil cooler (which is mounted in front of the radiator) and the cooling lines. I spent an extra $7.00 for some new hoses and fittings to fit my GMC pickup, instead of a Police Caprice Car.

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post #4 of (permalink) Old 10-03-2000, 04:01 PM
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Re: External Oil Cooler

I bought my adapter from Earls. Theirs is one piece and made for the Chevy, others are two piece to fit other motors, they are not nearly as strong and don't flow as well.
Use -10 AN fittings and hose, unless you want to risk your motor with rubber hose and clamps.

I lose a drastic amount of oil pressure with a temp increase. And yes the cooler makes difference. Don't f#@% around, buy a big cooler. Mine is a plate type 11"x11"x1-1/2".

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post #5 of (permalink) Old 10-04-2000, 07:56 PM
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Re: External Oil Cooler

Well first figure out why the oil pressure is so low !
Adding more hoses and a cooler may make things worse.
I'm not saying a cooler is bad , just get the oiling \ cooling systems together first.

post #6 of (permalink) Old 10-04-2000, 08:23 PM
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Re: External Oil Cooler

It has been dipped, checked for cracks, new everything. Less than 130 degrees runs 40lbs. 130-170 degrees runs 30lbs. 170-210 runs 20lbs. Any ideas?? I agree that adding more lines and a cooler would make it harder to throughly change the oil, and to build pressure.

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