Transmission cooling Lines Install - The 1947 - Present Chevrolet & GMC Truck Message Board Network

brown7373 · 05-15-2018, 12:42 PM

I am installing new cooling lines to my 350 engine THM 350 on my 1972 pickup. I removed the old ones and the engine months ago, and of course, I didn't take pictures of that and have forgotten the routing. The engine is in and the exhaust pipes are connected, but starter is not yet installed. I can't find a good picture in the Service or Assembly manuals.

Do the lines go through the metal engine stands or under them? And, do they go between the engine and exhaust pipe? My truck was converted to dual exhaust years ago. The pipe comes down and back toward the muffler.

brown7373 · 05-16-2018, 02:26 PM

Would someone please look at your truck with 350 THM 350 and tell me how to route the lines. Thanks

**RodnRudy** · 05-16-2018, 07:27 PM

Here's three pics I just took of my 350 Turbo trans cooler lines. That's the best I can do cause the trucks too low to crawl under. The lines go under the starter then along the side of the engine across the cross member not under the engine mount stand and then up to the radiator. Maybe you can enlarge them to get a better look. By the way these lines are reproduction ones from InLine Tube.

brown7373 · 05-17-2018, 08:29 AM

Thank you for the reply and pictures. I also have new InLine lines, but didn't get any pictures of their routing, and over the months the engine has been out, I just plain don't remember.

brown7373 · 05-17-2018, 04:39 PM

I got the cooling lines properly installed today. I had run them through the motor stand and knew that wasn't right. Once I got the lines back out of the truck, your pictures were very helpful in getting them installed correctly. Again, thanks!

**RodnRudy** · 05-17-2018, 07:17 PM

Glad I could be of assistance

hjewell2 · 05-17-2018, 09:03 PM

Quote:

Originally Posted by RodnRudy

Glad I could be of assistance

where did you get those lines from, how much bending did you have to do if any?

**RodnRudy** · 05-18-2018, 07:19 AM

Here's a link to Inline Tube where I got my lines
https://www.inlinetube.com

**RodnRudy** · 05-18-2018, 07:20 AM

They fit very nice without any bending

brown7373 · 05-18-2018, 09:09 AM

Mine too were from InLine. I had some very minor bending to get the ends aligned to allow the fitting to thread in.

05-15-2018, 12:42 PM	#1
brown7373 Registered User Join Date: May 2011 Location: Fort Pierce, FL Posts: 430	Transmission cooling Lines Install I am installing new cooling lines to my 350 engine THM 350 on my 1972 pickup. I removed the old ones and the engine months ago, and of course, I didn't take pictures of that and have forgotten the routing. The engine is in and the exhaust pipes are connected, but starter is not yet installed. I can't find a good picture in the Service or Assembly manuals. Do the lines go through the metal engine stands or under them? And, do they go between the engine and exhaust pipe? My truck was converted to dual exhaust years ago. The pipe comes down and back toward the muffler.

05-16-2018, 02:26 PM	#2
brown7373 Registered User Join Date: May 2011 Location: Fort Pierce, FL Posts: 430	Re: Transmission cooling Lines Install Would someone please look at your truck with 350 THM 350 and tell me how to route the lines. Thanks

05-16-2018, 07:27 PM	#3
RodnRudy Senior Member Join Date: Oct 2014 Location: New Palestine In Posts: 931	Re: Transmission cooling Lines Install Here's three pics I just took of my 350 Turbo trans cooler lines. That's the best I can do cause the trucks too low to crawl under. The lines go under the starter then along the side of the engine across the cross member not under the engine mount stand and then up to the radiator. Maybe you can enlarge them to get a better look. By the way these lines are reproduction ones from InLine Tube. Attached Images __________________ Phil "Money is only a tool to create and achieve what you want most in life" PayPal: rodnrudy@comcast.net

05-17-2018, 08:29 AM	#4
brown7373 Registered User Join Date: May 2011 Location: Fort Pierce, FL Posts: 430	Re: Transmission cooling Lines Install Thank you for the reply and pictures. I also have new InLine lines, but didn't get any pictures of their routing, and over the months the engine has been out, I just plain don't remember.

05-17-2018, 04:39 PM	#5
brown7373 Registered User Join Date: May 2011 Location: Fort Pierce, FL Posts: 430	Re: Transmission cooling Lines Install I got the cooling lines properly installed today. I had run them through the motor stand and knew that wasn't right. Once I got the lines back out of the truck, your pictures were very helpful in getting them installed correctly. Again, thanks!

05-17-2018, 07:17 PM	#6
RodnRudy Senior Member Join Date: Oct 2014 Location: New Palestine In Posts: 931	Re: Transmission cooling Lines Install Glad I could be of assistance __________________ Phil "Money is only a tool to create and achieve what you want most in life" PayPal: rodnrudy@comcast.net

05-18-2018, 07:19 AM	#8
RodnRudy Senior Member Join Date: Oct 2014 Location: New Palestine In Posts: 931	Re: Transmission cooling Lines Install Here's a link to Inline Tube where I got my lines https://www.inlinetube.com __________________ Phil "Money is only a tool to create and achieve what you want most in life" PayPal: rodnrudy@comcast.net

05-18-2018, 07:20 AM	#9
RodnRudy Senior Member Join Date: Oct 2014 Location: New Palestine In Posts: 931	Re: Transmission cooling Lines Install They fit very nice without any bending __________________ Phil "Money is only a tool to create and achieve what you want most in life" PayPal: rodnrudy@comcast.net

05-18-2018, 09:09 AM	#10
brown7373 Registered User Join Date: May 2011 Location: Fort Pierce, FL Posts: 430	Re: Transmission cooling Lines Install Mine too were from InLine. I had some very minor bending to get the ends aligned to allow the fitting to thread in.



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