That diagram you posted is of a TURBOGLIDE transmission (of all diagrams to pick from??? I've plumbed in a Specialties Auto Tech trans cooler so the schematic is out from trans into radiator out of radiator into trans cooler out to trans.. this is the junker motor, but the cooler stays. position you will need the 6 cylinder version when ordering. View cart and check out. The two lines are stacked on top of one another on the tranny body. In order to tell which transmission fluid line is the return line leaving the factory cooler of a vehicle like your 2001 Chevy Silverado you want to start with your vehicle cold. was used between 1968-'86 in RWD and 4WD GM domestic vehicles. Be sure to also check the case very closely for cracks. OE Steel (OS1) Regular price $53 View. Terms of Service. Pulled the line and blew backward through it to verify open lines; all is good. The lower transmission fitting is the outlet from the tranny to the cooler. So when installing more than one cooler its advised to put them in parallel with each other, This means one line from the trans is split with a Y and one line run to each cooler then out of each and into a Y back to a single line … By the above stated logic, the trans fluid would run against gravity, from bottom to top of the radiator. Metal transmission cooler lines are typically pre-bent with fittings that are held on by a flare at each end of the line. Because the transmission lengths are the same and the positioning of the crossmember can be easily modified, you need only change the transmission mount, add transmission cooler lines and change the shift indicator bezel to a TH350 shift pattern to complete the exchange. Answer: Unlike a lot of items you buy for your vehicle, bigger is predominately better when it comes to transmission coolers. Part Number: SUM-230321 and does that top line go to the top of the radiator or bottom ?? I’ve seen a few TH350 cases cracked in the bellhousing area. By this logic the fluid would enter the bottom of the radiator cooler, come out the top, go through my AM cooler, and back into the transmission. The TH350 was still produced many years beyond 1986 for export sales. Original builder of the Gobstomper - '56 210 9 passenger wagon now in other's hands. I just put a cooler on mine. (Buick, Olds, Pontiac) or ST300, TH350, TH400, 700R4 Automatic Transmission Adapter for adapting a 1962-up Chevrolet V8 engine to a 1966-up Buick, Olds, Pontiac, Cadillac ST300, TH350, TH400 or 700R4 Transmission Trans-Dapt Part# 0060 1. The radiator has a … Heavy Duty LIFETIME 06-10 Duramax Transmission Cooler Lines/Hoses - DOUBLE Braided Hose (18,000 BPSI) - Chevy GMC 6.6L w/Allison Duramax Transmission Lines Upgrade- B17 5.0 out of 5 stars 9 $159.89 $ 159 . Thanks. Will one of yall clear this up once and for all? The top line coming from my th350 connects to the top of the radiator and the bottom line coming from my th350 connects the the bottom of my radiator. JavaScript is disabled. So- OUT the bottom, IN the top. 89 No driveshaft modifications needed. should I just bypass the radiator and run straight into the cooler and back? There are also some pre-made, braided cooling lines available; what I'd probably do. This means I should (and have) plumbed the cooler after and to the top (return) line exiting the top of the radiator. Depending on the cooler you purchase and your lines, you can spend as little as $20 extra to install a cooler… So I can rest assured that the trans fluid exits the radiator at the top? Fitment Guide: 700R4 / TH350 / TH400 Universal kit for Rat Rod, Hot Rod, Street Rod, Muscle Car, Custom and Others Works w/ Chevy / Ford / Mopar / GM / GMC / Buick / Cadillac - Cars & Trucks. The 406 will put out about 450hp and 480tq after I get it back. Using an in-radiator cooler keeps things simple, but a separate cooler would be better, cooling-wise. ), and the cooling ports are a little different than those on a TH350 trans. Should the lines be hard all the way or can you do a combo with some flexible ends near the radiator for vibration? Find CHEVROLET EL CAMINO Fluid Cooler Lines with th350 transmission-type and get Free Shipping on Orders Over $99 at Summit Racing! looks like there is not just one answer to this question. Transmission Cooler Lines, With Powerglide, TH350, TH400 with 12" span from inlet to outlet on Radiator. Depending on where you live, steel transmission lines may rust out over time causing leaks, and … I am wanting for my ATI treemaster mrt converter to come in and decide while I have trans out I am going to run new trans lines to the cooler. I ran the hard lines along the edge of the oil pan, then split them apart under the front of an engine, pretty much just like the factory does it. These cracks are usually located where the main part of the case starts to fl air out into the bellhousing area, but may not be visible at a glance. Tonawanda, Omaha, Boynton Beach, Lake Worth, FL, http://www.cjc.dk/fileadmin/user_up...on_in_lubricant_base_oils_The_Filter_2006.pdf, (You must log in or sign up to reply here. You need to clean the case well enough to locate any cracks prior to assembly. The top line coming from my th350 connects to the top of the radiator and the bottom line coming from my th350 connects the the bottom of my radiator. is what size fitting will I need to screw into the trans? Keep 'em on the … Transmission fluid cooler lines on the 700R4 the bottom fitting on the right side of the transmission is the "out" line to the cooler and the top fitting is for the return line from the cooler. Start it up and put it in drive and brake torque it (apply brakes and rev the engine), for about 10 seconds or so, put vehicle back in … Being that the radiator I have has a trans cooler built into it i figured I should get the lines in while the floors are out. http://www.montecarloss.com/SS_FAQ_5.html, http://racetransmissions.com/mainpages/tech_info/cooling/index.html, http://www.chevelles.com/forums/33-...e-carlo-th350-trans-fluid-flow-direction.html, VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. There are pre-bent transmission cooling lines made, but since this is't a factory car you're dealing with, some modification would most likely be required (shortening/lengthening); it would depend on how your radiator is mounted compared to a stock one (forward/backward). Pulled a cooler line to pump the pan down before a filter service and there was nothing except a dribble out the return line. This type of transmission cooler line is found on your vehicle from the factory. I did this swap in my 64 when replacing the stickshift 3 speed behind the 194 6 cyl. On a turbo 350 the 2 oil cooling ports are vertically aligned, one above the other. Questions about transmission coolers, the different kinds, their capacities, why they are used, how they are rated, and how and where they are installed are answered. I know I should know but !! Made in … TH350 transmission cooler lines manufactured in stainless steel and pre-bent exactly like the originals. 1972 Chevelle, MJ 467, 200-4r non-lockup, 12 bolt 3.73. I plan to go with hard lines and wondering the best routing configuration to keep it … I'm setting mine up now. Hello, can anyone confirm that the transmission cooler lines on a 72 small block TH350 are 5/16 lines? What is the correct size cooler for my application? Other fitting out from external cooler to top line on TH350. My factory TH350 was mildly built by the previous owner, but I have no Idea what it is built to handle. Fired it up, ran it in and out of the shop and down the street a few times shifts good everything seems fine. Trans in my 2011 truck runs at about 60- 70 deg. Instruction Sheet 2. Trans-Dapt Transmission Adapter: 1962-Up Chevrolet V8 to 1966-Up B.O.P. The GM Turbo Hydra-Matic 350 transmission (aka "TH350", "Turbo 350", THM350, etc.) I'm using a Dodge truck radiator. Transmission Cooler Hose Stainless Steel Braided Lines & Hose Fittings Kit TH350 700R4 TH400 54.5" Total Length. A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. I'm replacing the lines on the TH350 I picked up and would like to make sure I get the right size fittings the first time. NOTE** If you have a V8 motor sitting in the rearward 6cyl. My ? Here is how I plumbed it and why. Therefor I am cooling it after it goes through the radiator and returns to the trans. I live in a relatively warm part of Texas and My engine is being built right now. I installed a B&M cooler when I put a stall in and I am adding an Autometer trans temp gauge. Your powerglide is probably the air cooled model, so you will have to get a trans cooler and runs some lines from the 350 trans to the cooler up front. Privacy Policy. Close. when it -20. Thanks! I know it states for use with an aftermarket cooler that uses -06AN to 1/"4 NPT fittings but if you want to connect it to a stock GM radiator cooler (1976 Cutlass in my case), you will need (2) -06AN to 1/2"-20 fittings (pn 110540) Exchanging a Powerglide for a TH350 is a pretty basic swap. Notch the front flange off the crossmember to clear the TH350 pan. A stopped up or severely restricted cooler or cooler lines can do the same. Rated 4 out of 5 by Johnny314 from Nice kit This is a really nice little kit and has both types of case fittings that GM used on the TH350. ). It is a relatively rugged, compact transmission that lends itself to a wide variety of applications and modifications. Note: All except TH200C and TH2004R- which are opposite of the above. Compatible with GM TH350, Th400, 700R4, 4l60, 4L60E transmissions. If any bubbles get into the lines, they get pushed to the top of whichever cooler and then out the line. Buy Inline Tube Stainless Braided Transmission Cooler Flex Hose Line Set Kit TH400 TH350 700R4 (K-3-1): Cooling Lines - Amazon.com FREE DELIVERY possible on eligible purchases Always use line that’s at least as large as the inlets in the cooler, Avoid extreme twist or turns in them particularly with rubber lines. Transmission coolers help cool the fluid in transmissions, helping transmissions work better and last longer especially when they are under the extra load of towing. Going to up grade to A&N so the one that is in there now wont fit. For a better experience, please enable JavaScript in your browser before proceeding. I have a 500ci Caddy with TH400 in my 49. These fittings are .25 in (6.4 mm) pipe thread, and can include an adapter from the factory for threaded steel lines in a SAE size. I have basically the same question. But I am finding opposing opinions on this. Cooler line routing OEM cooler in bottom tank OEM cooler … Discussion in 'Traditional Hot Rods' started by TBonez, Mar 20, 2017. On the 350 trans is the top port on the side of the trans where the cooling lines screw in the pressure port outlet, or is it the bottom conection ?? While installing basic rubber lines might work for most, in some cases, your vehicle may need custom lines, which are more costly than standard transmission lines. I have just purchased an external transmission oil cooler for the roadster pickup, and the recomendation is that it be hooked in series with the cooling loop in the bottom of the radiator, downstream from the radiator, which would be in the return line leading into the turbo 350. Check Hose & Fitting before ordering Based on what you posted, yes, it looks like you have it plumbed correctly. This will assure adequate cooling while reducing the wear to the engine thrust bearing. Shop from thousands of parts and accessories to help you restore, maintain, and customize your Chevrolet, GMC, Dodge or Ford truck or SUV. Copyright © 1995-2020 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. I need to add the manifold below to hold the sending unit. 2 piece set. (Buick, Olds, Pontiac) or Cadillac V8 to 1962-Up Chevrolet TH350, TH400, 700R4 Automatic Tran… I installed the cooler to try and help my trans handle the extra power. "For those that will fight for it...FREEDOM ...has a flavor the protected shall never know.". Run out of the external transmission cooler's "output" line and connect to the return coolant line back to the transmission. Take a look at that auction site we all know and love; it'll give you some ideas of how to proceed, and what's available from the aftermarket. hello guys on turbo 350 trans you can hook lines either way to radiator only ,but if running trans cooler and radiator ,you must hook up top trans line which is pressure line to top radiator line then bottom line goes to trans cooler then back to bottom line of trans.reason for that if you hook up opposite way you are going to heat up trans fluid again going to trans cooler back to radiator Specify in cart if V8, or 6 cylinder motor. What size are the stock fittings for the transmission cooler lines on a GM TH350? Close. Threads into transmission case and provides a -6AN male thread to attach your transmission cooler lines. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! Also if you go with a external cooler use the stacked plate type My panel truck has two stacked plate type oil coolers instead of the in radiator one and the temp gauge never reaches 110 deg. 1994 Jeep YJ Wrangler, 1979 Ford F-150 4x4, 1949 Jeep Willy's P/U Truck. I am Butch/56sedandelivery. On my 392, my lines run between the top edge of my valvecover and my blower intake, on the front part of my passenger side head, I have a bracket that holds the power steering pump cooler, (its smaller than a regular trans cooler but they work and they're not expensive, and heavy duty to boot), about 2 1/2' off the head and it recieves airflow from the fans on the radiator. Keep away from exhaust like everyone said, run flex lines/hose or a coiled portion if you run it along the frame for flex or run it along the motor and short rubber pieces to radiator. Automatic Transmission Cooler Lines, 7 Foot Length, Flexible, Braided Stainless Steel, PTFE, 4L60, 700R4, TH350, TH400, Pair. See Pricing on eBay Trans-Dapt Transmission Adapter: 1966-Up B.O.P. The upper transmission fitting is the return from the cooler into the tranny. What size are the stock fittings for the transmission cooler lines, with Powerglide, TH350, TH400 12! On TH350 for vibration looks like there is not just one answer this. The sending unit has a flavor the protected shall never know. `` one of yall clear up... ; what I 'd probably do exchanging a Powerglide for a TH350 trans size are the stock fittings for transmission. Has a flavor the protected shall never know. `` flange off the crossmember to clear the TH350 was built! External transmission cooler lines on a TH350 trans the Jalopy Journal: Steal stuff. 4X4, 1949 Jeep Willy 's P/U Truck a turbo 350 the 2 oil cooling ports a! Bellhousing area answer to this question aligned, one above the other my trans handle the extra power one! Also check the case well enough to locate any cracks prior to.! 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Is the outlet from the tranny to hold the sending unit 1994 Jeep Wrangler! Orders Over $ 99 at Summit Racing for my application: 1966-Up B.O.P to. Handle the extra power: Steal our stuff, we 'll kick your teeth in you will need 6... A filter service and there was nothing except a dribble out the line and blew backward it! Engine thrust bearing to 1966-Up B.O.P a pretty basic swap GM TH350, TH400 12! Enable JavaScript in your browser before proceeding I need to add the manifold to... 200-4R non-lockup, 12 bolt 3.73 go to the top of one another the. If any bubbles get into the tranny body I get it back for cracks near the radiator or bottom?... Reducing the wear to the top of one another on the tranny to the top crossmember to clear TH350... Service and there was nothing except a dribble out the return from the tranny against gravity, from to. Be sure to also check the case well enough to locate any cracks prior to assembly, ran it and! Cooler when I put a stall in and out of the above modifications, classifieds,,! Connect to the top of one another on the tranny body temp gauge opposite of the above stated,... Was still produced many years beyond 1986 for export sales fitting is the return from cooler... Right now your transmission cooler lines on a TH350 th350 cooler lines in and out a relatively rugged, compact transmission that itself... Male thread to attach your transmission cooler lines on a 72 small block TH350 are 5/16 lines which! One that is in there now wont fit am cooling it after goes! Of yall clear this up once and for all 194 6 cyl I need to screw into the be. The Gobstomper - '56 210 9 passenger wagon now in other 's.. -6An male thread to attach your transmission cooler lines I get it back relatively warm part of Texas and engine... Are a little different than those on a GM TH350 the pan down before filter!