Th350c torque converter. Lockup : Yes.

Th350c torque converter. Lubricate the bearing surface of the hub and slide the torque converter onto the transmission. So instead jacking up the car and throng to find where the wires go into the transmission I was hoping there was a place under the hood to just unhook it For 1980-1984 GM TH250C and TH350C Transmissions. 49 The top dog of cool TH350 transmissions is the TH350C Unicase version, featuring both a Chevy / BOP pattern and a lockup torque converter. We carry over 500 types of domestic and import torque converters to meet your needs. GM TH350C Torque Converter MV4 TH250C M31 Lockup Low Stall Gas Engine 1980-On $344. 60 GM TH350 HD Torque Converter TH250 M33 M38 M39 Stock Stall Jul 11, 2014 · I started out by rotating the torque converter into relatively the same position as the 2 tabs on the trans, but am having trouble getting these last 2 items to match up. A great choice for show cars and street rods, this converter incorporates many of the manufacturing processes and performance features found in TCI full competition models, including furnace brazed fins and a hardened, pre-ground pump hub. They're offered in four levels to perfect your performance needs and designed to handle as much as 500 hp. Made in USA Oct 8, 2018 · TH350 Intermittent Engagement Questions and Troubleshooting Steps Engine & Drivetrain The “C” in TH350C stands for “lockup converter,” which means that it has a torque converter clutch that engages to provide a direct mechanical connection between the engine and the transmission at higher speeds. This kit will enable the driver to control the operation of the torque converter lockup clutch. Everything on it works great, shifts hard and well, but I think the converter is bad (feels locked always). The reason I have an extra tranny is I went to an Art Carr TH350 with a 3000 stall and man what a difference the GM3 - GM Chevy TH325, TH350, TH350C, TH400, TH475 Transmission Non Lock Up Torque Converter 13"Recon Limited Warranty All Recon by Transparts torque converters supplied are warranted to be free from manufacturing defects in material and workmanship for a period of four years or 48,000 miles from the date of purchase whichever occurs first this warranty is void, and no warranty shall apply to Oct 7, 2025 · TH350C Turbo 350 Solenoid - to operate Torque Converter Clutch. Dec 27, 2001 · TH350C Lock-Up diagram The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board Oct 31, 2009 · All torque converters slip some, it depends on the stall rating as to how much. Apr 19, 2012 · JEGS Torque Converter - GM TH350 Torque Converter for TH-350 and TH-400 Transmissions - 2700-3000 RPM Stall Speed - 10. Using the aid of a helper, stand the transmission on the tail shaft and carefully install the torque converter onto the transmission. Stall speeds are approximations and will vary with amount of input torque! Jan 12, 2018 · Hello I have a 1983 Silverado C10 that feels like the torque converter locks up even with the solenoid unplugged. Also is the lock up just in the converter or are they different cases and parts Find Torque Converters 2,500 Stall Speed Rating RPM Range, In Stock Filter Options, Vendor In Stock Filter Options and get Free Shipping on Orders Over $109 at Summit Racing! Nov 5, 2005 · An OD trans needs to be manually shifted down into 3 as the vehicle slows, so having the converter permanently locked in OD isn't a problem as I've manually downshifted before the engine starts lugging. com heavy duty utility Chevy/GMC TH350 transmission and torque converter built by Transmission Exchange Co for 1969-85 applications (note: from 1980-85, the TH350 was actually only available as a "TH350C" with lockup converter. Apr 19, 2012 · Performance torque converter for street and track use for improved launch and acceleration Made in the USA using high quality materials and assembly. GM TH350C 298mm Street Bandit Series 3,200 - 3,500 RPM Stall Range Lock up Converter for Driving on the Street, Strip, and Racing, & Choppy Idle applications. 25 years+ of reputation in california. This Solenoid Will Not Convert A Non-lock Up TH350 Unit To Lock Up! THIS SOLENOID WILL BE ROSTRA. I am thinking its staying locked up all the time. Extreme Duty Light Weight High Performance & Racing Converters for more HP to the ground! TH350, Torque Converters in-stock with same-day shipping. GM TH350 TH400 Night Stalker Series 2,200 - 2,800 RPM Stall Range, for Driving on the Street and Strip applications. All my other GM's have had non lock 350's. Thanks GM TH350C Out Law Racing Series 3,200 - 3,500 RPM Stall Range Lock up Converter for Driving on the Street, Strip, Racing, & Choppy Idle applications. Our 3/4 Race series of torque converters is intended for street/strip combinations, with various stall speed offerings to accommodate any mixture of modification This Breakaway Torque Converter provides between 2400 to 2600 RPM flash stall without negatively affecting part-throttle driving. Find great deals on eBay for Th350c Torque Converter. The Boss Hogs use Torrington-style incased bearings Hughes GM20 2000 Stall Series STREET ROD Torque Converter GM TH350/400, 10in This converter was designed and manufactured for the street rod enthusiast needing that slight edge of the O. GM TH350C 298mm Street Bandit Series 3,500 - 4,200 RPM Stall Range Lock up Converter for Driving on the Street, Strip, and Racing, & Choppy Idle applications. Jul 30, 2025 · ONLY FOR THM350C! GM TH350C Universal Lock-up Solenoid - High Performance (Fits Lock-up only). 5" - TH350/TH400 $479. *A coolant temperature switch, to keep the converter unlocked until the engine came up to operating temperature. These differences only affect the front bell of the case, and all TH350 cases are similar from that point back. So my question is what would be the best way to control converter lock and unlock? Is there a port that has fluid pressure only when the trans is in 3rd gear? Jun 15, 2006 · Like the TH350C, the nomenclature TH200C also means it has a locking torque converter. CHEVY Olds Pontiac Buick. Note the letter "C" cast into its front face adjacent to the pump bore. It was introduced in the late 70s, when they were looking for mileage, and they went to rearend gear ratios like 2. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Nov 28, 2007 · The early TH350C as I recall was controlled by: *A brake pedal mounted switch, to unlock the converter when the brakes were applied. It's the first lock up converter turbo iv'e ever owned. Apr 3, 2014 · You can see the connections on the ECM on the last page. 00 Sep 29, 2025 · Up for sale is a remanufacturedTH350C - Turbo 350 Lockup 1700 - 2100 stall torque converter. TH350-C and 700r4 Discussion in ' The Hokey Ass Message Board ' started by nate, Sep 3, 2009. Extreme Duty Light Weight High Performance & Racing Converters for more HP to the ground! May 29, 2012 · The wires are from the trans harness, a 1984- 700r4, and i believe it locks or unlocks the torque converter. Keep your ride in printing condition and order a JEGS torque converter online today! I show the viewer the procedure for converting a TH350C to accept a non-lock up style torque converter. I need to know which wire is the ground and which wires need to have 12V power fed to them. TH350 Super-Tuning GM TH350C Out Law Racing Series 3,200 - 3,500 RPM Stall Range Lock up Converter for Driving on the Street, Strip, Racing, & Choppy Idle applications. Keeping the converter out of lockup mode during city driving saves wear and tear Sep 21, 2008 · if the torque converter is for a TH350C (lock up torque converter it wont work) best bet is to determine if you have a TH350 tranny and not a TH350C tranny. Trying to order a TG shift kit. Extreme Duty Light Weight High Performance & Racing Converters for more HP to the ground! GM TH350C 298mm Night Stalker Series Stock Stall Range Lock up Torque Converter for Driving on the Street, Strip, and Racing applications. Shop with confidence. Sep 24, 2025 · Up for sale is a remanufactured TH350C 350C - Turbo 350 Lockup 2200-2600 stall torque converter. Is that a auxiliary valve body issue or the converter itself. Learn our tips on how to choose the right stall converter/torque converter for your GM Turbo 350 transmission to make your build the best it can be. Lockup : Yes. Print part listing 0 Apr 18, 2014 · It's a TH350 with a lockup torque converter. Asides from this, other variants of the TH350 were launched and these are the TH200, TH200C, TH250, TH250C and TH375. 5 converter, the overall requirement is around 10 quarts. you cant mix the 2 ( in other words a TH350C torque converter wont fit a regular Sep 28, 2011 · Does anyone have the wiring diagram for a 350-c tranny? Its the plug on the left side of the tran case and goes to the lockup clutch in the converter. Sep 18, 2018 · FOR CHEVY V8 Engine LOCKUP 1900 - 2200 HIGH STALL HEAVY DUTY TH350C Transmission Torque Converter. 49 Torque Converter HD TH-350 TH-250 (M-33 M-38 M-39) $409. M stock converter. Using a TH350 torque converter on a TH350C may cause improper engagement or damage. Pour at least 1 quart of clean ATF slowly into the torque converter. Jun 17, 2025 · All lockup surfaces are machined for smooth surface. The driver can select between the converter's normal function and having it unlocked in all gears with a three speed automatic transmission and in all gears but overdrive (fourth) on four speed overdrive transmission. Extreme Duty Light Weight High Performance & Racing Converters for more HP to the ground!. Find detailed instructions, diagrams, and tips to ensure a smooth transmission function. GM3 - GM Chevy TH325, TH350, TH350C, TH400, TH475 Transmission Non Lock Up Torque Converter 13"Recon Limited Warranty All Recon by Transparts torque converters supplied are warranted to be free from manufacturing defects in material and workmanship for a period of four years or 48,000 miles from the date of purchase whichever occurs first this warranty is void, and no warranty shall apply to Sonnax Torque Converter parts for GM TH350C applications Find Parts and Accessories th350C torque converter KEYWORD, In Stock Filter Options, Vendor In Stock Filter Options and get Free Shipping on Orders Over $109 at Summit Racing! GM TH350C Out Law Racing Series 2,800 - 3,200 RPM Stall Range Lock up Converter for Driving on the Street, Strip, Racing, & Choppy Idle applications. < High Stall Converter >. The Turbo 350 transmission, commonly known as the TH350, was a 3 speed automatic transmission that began phasing out the GM Powerglide in 1969. All units are sold directly from our factory and carefully rebuilt by our master technicians. E. Don The first step in this process is to install the torque converter into the transmission. May 13, 2014 · Ok so I know my th350 output shaft is 27 spline. 750" Bolt Pattern, 3 pad Mount w/ 10mm x 1. High Performance & Racing Converters for more HP to the ground! Match stalls to your entire set up for your best results. For confirmation please provide your vehicle information, when you check out: Year , Make , Model , Engine Size , Transmission Type ? GM TH350C Torque Converter MV4 TH250C M31 Lockup Low Stall Gas Engine 1980-On $344. For confirmation please provide your vehicle information, when you check out: Year , Make , Model , Engine Size , Transmission Type ? Bullripper. Find Boss Hog GM TH350/TH400 Powerglide LS Direct Fit Torque Converter - Outlaw Racing Series at LSXceleration with Free shipping on qualifying orders! Sep 18, 2018 · FOR CHEVY V8 Engine LOCKUP 2300 - 2700 HIGH STALL HEAVY DUTY TH350C Transmission Torque Converter. This may require considerable effort. The final Find Boss Hog Night Stalker Torque Converters 2,200-2,800 Stall Speed Rating RPM Range and get Free Shipping on Orders Over $109 at Summit Racing! Boss Hog Night Stalker Series torque converters can take you from towing to rock crawling. Its not a lockup trans So which input spline is it? On the contrary, the TH350C, a variant of the TH350 that has a lock-up torque converter had codes including MV4, MX2, MX3 & MX5. 703" Pilot Diameter, 30 Spline, 1600-1800 Stall Speed GM TH350C 298mm Night Stalker Series 1,600 - 2,200 RPM Lock up Torque Converter for Driving on the Street, Strip, and Racing applications. 29which made the torque converter slip when going 55 in high gear. I am simply putting a toggle switch on it for right Aug 30, 2023 · Purchase a 3000 stall converter TH350 online from JEGS High Performance. Torque Converter; Lock-Up, 12" Overall Diameter, 10. I went to order a converter and there is 2 options for the th350 a 27 spline input and a 30 spline input. TCI has engineered these Breakaway Torque Converters to be efficient at highway cruising speeds and to launch hard at wide-open throttle. Extreme Duty Light Weight High Performance & Racing Converters for more HP to the ground! Feb 23, 2016 · Did the 79 Monte with factory 305 come with the Th350 or th350C? The C was with a converter from what I hear. It seems that if I were able to turn the motor over, that sooner or later the torque converter would line up with the transmission, but I haven't tried that. Get the Best Performance with ACC Performance Nightstalker Torque Converter for GM TH-350C Transmission, Stall Range: Stock, Diameter: 12 in. This unit has silicon brazing for strength, needle bearings for reliability, and stator modifications for more torque multiplication. ACC PERFORMANCE GM Torque Converter TH350C 2200 - 2800. . NEW ROSTRA UNIVERSAL LOCK-UP SOLENOID. GM TH350/TH40030 Mar 11, 2002 · C3 Tech/Performance - TH350 Torque Converter Lockup - Hi all, I went ahead and pulled the electrical connection for the Torque Convertor and drove around. Jul 5, 2021 · Hey guys I recently bought a th350c for my 86 sqaurebody and my truck never originally came with the th350c and once I got the tranny home it came with this connector for what I assume is the lock up, its a 3 pin connector if anyone could tell me how to wire this up I would appreciate it I’ll Jun 17, 2025 · All lockup surfaces are machined for smooth surface. For confirmation please provide your vehicle information, when you check out: Year , Make , Model , Engine Size , Transmission Type ? Nov 9, 2021 · A guy at Phoenix Transmissions just west of me suggested a TH350C to reduce highway engine speed by 300 RPM or so when the converter is locked. 5 Thread, Slotted Hub, 1. Sep 3, 2009 · Torque Converter interchange. 49 Jul 3, 2025 · Common Applications:All TH350C Lockup vehicles V8 engine. , Lock Up: YES 47400 parts at JEGS. Jun 17, 2025 · Please Email or call with application information so we can get you the correct torque converter for your vehicle. Warranty does not cover failures due to exceeding HP limitations or use of trans brake or nitrous on non-upgraded converters or by abuse. 922 on the ECM is the Torque Converter Clutch Output and it goes through the EGR relay and then powers the Converter Solenoid which is the Tan/Black wire. Shop Now at the Guaranteed Lowest Price! Oct 7, 2025 · The TH350 takes about 4 quarts in the pan, and then requires additional based on the torque converter being used. Dec 24, 2016 · C3 Tech/Performance - Th350c torque converter relay - Can someone please tell me where the relay is for the th350c. Ideal torque converter for small block applications up to 500 horsepower without nitrous or super/turbochargers. Any help appreciated. Feb 21, 2008 · How do you tell the difference between TH350 and TH350C? (pics would be great) Also what is the difference physically and mechanically? 2. Verify part numbers and consult manufacturer specs. Spin the torque converter at the same time to help align the input shaft and stator splines. Features:Furnace-brazed finsNeedle Get the best deals for Th350c Torque Converter at eBay. Extreme Duty Light Weight High Performance & Racing Converters for more HP to the ground! Oct 4, 2016 · I am in the process of converting the TH350C transmission in my '65 Olds Cutlass to a TH350. 1K views 4 replies 3 participants last post by TimAT Feb 9, 2010 1 Jan 28, 2024 · See Torque Converter Selection Chart Above to Help with Choosing the Correct Converter JEGS 555-60403 Torque Converter Features: Performance for street and track use for improved launch and acceleration Made in the USA using high-qualityighh quality materials and assembly 3100-3500 rpm stall speed to match your engine and camshaft needs Ideal for small block applications up to 500 horsepower Find Torque Converter Lock-Up Kits In Stock Filter Options, Vendor In Stock Filter Options and get Free Shipping on Orders Over $109 at Summit Racing! TORQUES: TH250C/TH350/TH350C, TORQUE CONVERTER, LOCKUP, 3 PADS, 30 SPLINES, 1400-1600 STALL, CODES: BG/BG4C/BG8D/L7/M7/P6, B16BGD I go over the differences between a TH350 and TH350C transmission, how to identify each type and what you can do to convert a TH350C to a non-locking 350 if Home Torque Converters Street Race Converters GM TH350/TH400 TH350/TH400 Sort By: FTI Performance Economy Street Racer Series Non Lock-Up Torque Converter - 9. The Lockup clutch eliminates this and reduces the engine rpm 150-300rpm providing slightly better MPG. This Converter is set up for 800 to 1,000 RPM over a Stock application. The JEGS 60401 torque converter is built with high-quality materials to give your vehicle plenty of power. If you don't connect it, it will work like a normal transmission. *A manifold vacuum sensor, to unlock the converter under heavy throttle usage. 49 GM 350C HD Torque Converter 250C M31 Lockup High Stall 2000 RPM $344. Trans is a TH-350C. Dec 28, 2022 · Product Description TO-GM16HD TH350C TURBO 350C lockup transmission Torque Converter - Stock Stall 1980-1986 - All units are remanufactured according to OEM specs or better. Spin the torque converter and listen for 3 distinct clicks as it drops into the transmission. I believe a TH350C tranny has a electrical conector on the passenger side to lock up the torque converter. I can't remember if the Th350C downshifts into 2 before the revs drop enough for it to lug with the converter locked? Jul 24, 2004 · Hello all, I have an extra TH350C tranny with a transgo shift kit. Thanks Nov 3, 2009 · Hey I have a similar problem, especially after driving on the freeway then slowing down, I m considering a new torque converter which is prbably causing it to stall at idle, I have a 350 with a mild cam, so it might need higher stall speed. The TH350C uses a specific 27-spline input shaft and a unique bolt pattern differing from the TH350. ACC Performance's 47402 Torque Converters And Components. TH350, TH-350, M33, M38, M39, TH350C, TH-350C, MV4, MX2, MX3, MX5, THM, THM350, THM350C, Turbo-Hydramatic (5)Reviews: 1 GM TH350C Torque Converter MV4 TH250C M31 Lockup Low Stall Gas Engine 1980-On $344. Exact Stall Speed will depend on your vehicle's HP and Torque. All lockup surfaces are machined for smooth surface. All units are sold directly from our factory and carefully rebuilt by our experienced team. To identify if a torque converter fits a TH350C transmission, check the bolt pattern and spline count. -Lock-up TCC Solenoid-. Extreme Duty Light Weight High Performance & Racing Converters for more HP to the ground! Find great deals on eBay for Th350 Lockup Torque Converter. When combined with a 9. The popular Saturday Night Special Torque Converter delivers premium performance at a reasonable cost. Now before you all mock the hell outta the 267 sbc and TH250c i'd like to say it's GM TH350C 298mm Night Stalker Series 2,200 - 2,800 RPM Lock up Torque Converter for Driving on the Street, Strip, and Racing applications. In Stock - ships in 24 hours! The Turbo Hydramatic 350, or TH350 for short, is highly regarded among auto aficionados as one of the best three-speed automatic transmissions created. com. Nov 9, 2021 · A guy at Phoenix Transmissions just west of me suggested a TH350C to reduce highway engine speed by 300 RPM or so when the converter is locked. GM Chevy TH350 Torque Converter Click on any bold item to see available products. Economically priced for performance on a budget. 3100-3500 RPM stall speed to match your engine and camshaft needs. Extreme Duty Light Weight High Performance & Racing Converters for more HP to the ground! Learn more about th350 lock up wiring diagram and how to properly install and troubleshoot it. Warranty does not cover failures due to exceeding HP limitations or use of trans brake or nitrous on non upgraded converters or by any abuse. Find Boss Hog Night Stalker Torque Converters 2,200-2,800 Stall Speed Rating RPM Range and get Free Shipping on Orders Over $109 at Summit Racing! Boss Hog Night Stalker Series torque converters can take you from towing to rock crawling. May 16, 2025 · Model 4007059 - Hays Twister 3/4 Race Torque Converter, 1977-UP GM TH350C w/Lock-Up 97-1C28Q - Hays Twister 3/4 Race performance torque converters are a perfect addition to our line of performance flexplates, clutches, and flywheels. 400 Jun 8, 2017 · See Torque Converter Selection Chart Above to Help with Choosing the Correct Converter JEGS 555-60404 Torque Converter Features: Performance for street and track use for improved launch and acceleration 3500-3800 rpm stall speed to match your engine and camshaft needs Ideal for small block applications up to 500 horsepower without nitrous or super/turbochargers Economically priced for Jul 10, 2016 · B&M Dash Mounted Converter Lockup Controller GM 700R4/TH350C/4L60/200-4R Automatic Transmissions Part Number: 130-70244 Product Q&A View Now Click image to zoom GM TH350C Out Law Racing Series 2,400 - 2,800 RPM Stall Range Lock up Converter for Driving on the Street, Strip, Racing, & Choppy Idle applications. Other locking torque converter trannies include the TH200-4R and TH700R4, neither of which have the letter C in their nomenclature. I have a 1980 caprice classic witha 267ci and a TH250c trans in it. The car is finally running correctly. Jan 19, 2008 · Hey people i'm new here and need some advise. 00 Home Torque Converters Street Race Converters GM TH350/TH400 TH350/TH400 Sort By: FTI Performance Economy Street Racer Series Non Lock-Up Torque Converter - 9. The reason for this is that 2 days before the TCI High Stall Torque Converter I had ordered from Summit Racing arrived down here in New Zealand I realized that I had a TH350C lockup type transmission installed. 75 Inch Flexplate Bolt Pattern - 500 Horsepower Maximum Applications Dec 9, 2014 · 298mm LU (TH250C, TH350C, 200-4R, 4L60 & E) Tech Resources December 09, 2014 20 Years Later: What’s New with 4L60-E PWM Modifications December 09, 2014 GM 4L60-E Friction Material Options May 21, 2012 History Repeats Itself: Worn Pilot and/or Cracked Flex Plate Issues Return on the GM 4L80-E Converters Ed Lee March 27, 2006 Dec 28, 2022 · TO-GM16-25 TH350C TURBO 350C lockup transmission Torque Converter - 2100-2500 Stall 1980-1986 - All units are remanufactured according to OEM specs or better. *** This version replaces the previously released video with the same title that had issues. Add a quart of new transmission fluid to the torque converter. Feb 9, 2010 · TH350c Torque Converter Wiring Jump to Latest 5. q4ohw 5bv15 dju wai jivmz1 lcebs d7i gcww q9beq tveq