The 350 transmission is 21-3/4\" long and its one-piece case is cast of aluminum alloy. Super-tuning the TH350 transmission involves modifying the stock transmission to ensure it is suited for street or strip use. (left) TRIVIA: most of the vehicles that came Copy link. Yes. machined face of the pump cover. 7/16 in. While the TH350 is no longer in production, the transmission is still used for many classic car builds. Episode 5 In this weeks episode, we’re discussing stall speed and what that means exactly! They both also share the same 27 spline output shaft as well. Turbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of automatic transmissions developed and produced by General Motors.These transmissions mate a three-element turbine torque converter to a Simpson planetary geartrain, providing three forward speeds plus reverse.. The case has a "C" cast into it, and there will be an electrical plug adjacent to the shifter shaft on the driver side of the tranny. used in cars, vans, trucks, and motorhomes. Tap to unmute. by Ron Sessions 6L80 6L90 Torque Specifications; 6L80/6L90 Fluid Capacity ; 6L80/6L90 General Specifications; 6T30 6T40 6T45 6T50 Torque Specifications Share. Automatic Transmission Both the TH350 and TH400 have a similar look. If you continue to use this site we will assume that you are happy with it. Hello all, Well the T350 install continued this weekend. Find them on Amazon.com or with Google. The T-350 gear half starts with a permanent-mold aluminum casting and is machined in house on one of our 4 axis CNC machines. 05-22-08 02:43 AM - Post# 1438602 Hi, Does anyone know the length and thread type etc of standard TH350 Trans Oil Pan bolts? The final step in the process is to make sure that the notches in the hub engage with the transmission oil pump. Great information on General Motors automatic transmission parts. Try to install a .001” feeler gage between the straight edge and the face to verify flatness. were introduced to Outer Main Cap Bolt: 65 ft.-lbs. Check the distance between the torque converter and flex plate/flywheel with the torque converter fully seated in the oil pump. Look for the end of the input shaft to have a smooth polished end with O-ring on it, similar in appearance to the 200C/2004R and 700R4/pre-LSx 4L60E. but NOT with the weak '350-C' models that followed. Angled correctly, it is like keeping a finger gently pushing against the converter, lightly holding it in. Hughes Performance specializes in rebuilding and repairing transmissions and torque converters. bolted up to the flexplate. Tech info, reviews and FAQs for popular GM automatic transmissions. Turbo 350 transmission pan torque specs. Chevy: a timing chain and then re-time the engine..throttle body..PU. Buick - Cadillac - Chevrolet Search Car Torque Specifications by Engine or Model That is why we are excited to announce our all new part number HP2205 Do-It-Yourself Extreme Duty 2-speed TH400 transmission conversion kit!! Watch later. […], Torque Converter Ballooning Episode 6 Today’s video features technical discussion regarding torque converter ballooning as we seek to dispel some common myths regarding this phenomenon while also providing the facts about what ballooning does and [...], What Is Stall Speed? Screw-In Rocker Arm Studs: 50 ft.-lbs. The simple fact that this transmission had an extra gear compared to its predecessor is an advantage from the start. A tip: slowly pour a quart of trans fluid into the torque converter before inserting the torque … Over 6,000 Automotive Torque Specs. there were no shortcuts taken. If you use aftermarket performance bolts like ARP's, you should follow the recommended torque specifications. If the torque converter is too far out of the pump, the inner pump drive gear can be damaged. See Figure 10A-28. GM 5.7L-350ci-V8 Engine Torque Specs. As with all Jake’s Performance transmissions they include all new friction clutches, bands, steel plates, soft parts, filter, modulator (if applicable), as well as hydraulic upgrades, and other modifications depending on power level. You can use a number of cinder blocks arranged in a triangle around the transmission to hold it up. … Of course, a high-performance torque converter matched to the engines power curve, the cars weight and its rear gear ratio will also make a positive difference in the performance of your TH350. Connecting Rod Bolt: 40-45 ft,-lbs. Is the 75 in/lbs TransGo speced tight enough? These transmissions feature low gear only, and must be used with a functional torque converter. They utilize a kick down cable, and they both use the same bellhousing bolt pattern. Intake Manifold Bolts (Cast Iron Heads) 30 ft.-lbs. Choose from several applications that include an ATI Street/Strip transmissions, a Streetmaster Torque Converter, transmission cooler, a “Trick Stick” locking dipstick and tube and, on non electronic units, a case of ATI’s Super F™ automatic transmission fluid! Post: TH350 Trans Pan Bolts - specs (length/thread etc) (Topic#190160) HQ@NZ Senior Member Posts: 524 Loc: New Zealand Reg: 06-09-01. Apply "Loctite" (Red) to threads of screws and torque to 20 ft. lbs. In-Lbs. What do I torque the bolts that connect the mount to the tranny itself? Be sure to replace this bushing if not using a new replacement pump body & gears. (157mm ID x 1.73mm x 7T) ..... 69-86 3 TH350.STP02 301C Direct Clutch (124mm ID x 1.73mm x 12T) .... 69-86 4 TH350.STP01 301C Direct Clutch Over Size (124mm ID x 2.25mm x 12T) .... 69-86 4 TH350.STP04 302D Forward Clutch (124mm ID x 1.73mm x 12T) .... 69-86 5 TH350.STP01 302D Forward Clutch Over Size (124mm ID x 2.25mm x 12T) .... 69-86 5 TH350… Install six of your pump bolts and torque them to 20 ft-lb, working back and forth across the pump in a "star" pattern. Replacing oil pump, timing gear and chain, water pump. On the contrary, the TH350C, a variant of the TH350 that has a lock-up torque converter had codes including MV4, MX2, MX3 & MX5. Resurfacing is shown on PAGE###. 3 popular books for rebuilding 350s: Th350 has the vacuum modulator in the back, and the TH400 keeps it on the side. Connecting Rod Bolt: 38-44 ft.-lbs. High School or GED. GM usually paired the Turbo 350 with small-block Chevy engines, such as the 327 and 350 V-8s. CAUTION Exercise extreme caution when shimming a torque converter and be sure that you do not pull the converter pilot too far out of the crankshaft. I have the new T350 bolted up to the engine & torque conv. 30. models Inner Main Cap Bolt: 70 ft.-lbs. If you will be replacing the pump body, be sure to check ATSG Techtran Manual 350/350C Please call us today for details and pricing. 360. The clearance here should be no less than 1/8 inch and no more than 3/8 inch. I am a retired rebuilder and can assist you with And it is FUN! FIGURE2 Use Bolt Kit PIN 92456-K for assembly. Global Transmission Parts also ships high quality GM transmission parts to our commercial customers fast! your bench (rebuilding) job, at your location in This makes the 200-4R nearly a bolt in replacement of the TH350 and certainly takes less effort than the 700R4 does to swap in. The Turbo 350 came encased in a one … If the torque converter is new, and a new bushing was installed in the oil pump, the torque converter has a relatively tight fit, and it can be considerably difficult to install. What do I torque the bolts that connect the mount to the tranny itself? Use a small awl or screwdriver to pry upward on the input shaft as shown. Same also holds true with the oil pump - "C" is cast into the pump cover and pump … DIY Extreme Duty 2-speed TH400 Transmission Conversion Kit! Identification. Looking in my 350 manual, by Ron Sessions, he says 7-10 ft/lbs (84-120 in/lbs). At the right rear of the case is the modulator.The TH350-C was the lockup torque converter version introduced in the late 1979 model year, and was produced through 1984. 4,792 satisfied customers. Ft-Lbs. More than 25 million were produced; m) of torque of the 6.0 Vortec engine. Info. These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Outer Main Cap Bolt: 40 ft.-lbs. Fill out our online tech card and let one of our helpful staff get the transmission and converter that will fit your need! If playback doesn't begin shortly, try restarting your device. If the gage fits, the face is warped. Up Next. the modifications also lowered 40.67. Step 13: Once the pump is tightened, check the input shaftendplay. Right now they are set for 25 ft-lbs. Do you. supposedly I am putting a new pan on, but have 'spreader' plates to hopefully make it seal … N-m. Years: Hey guys, I found several different torque specs in my manual, but nothing that said it was specifically for the th350 tranny mount. Any help answering the 2 questions would be great, also i remember seeing a website with all this info but can't find it and forgot to put it in my favorites. Used Grade-8 washers as shimming material if the clearance is excessive. GMC - Oldsmobile - Pontiac GM Turbo 350 Transmission Installation Guide. Shopping. Fast, Consistent Reliability & Serviceability. The TH350 was popular for a variety of reasons. The TH350 could be found under the hood in most GM trucks and rear-wheel drive cars up until the mid-80s, due to its reliability, sturdy build, and compact size.While small at under 22 inches in length and roughly 120lbs in weight, it was a trans… Prepare the transmission as suggested in Figure I. I will help with the real 350s of the years above, Tighten the pump bolts with a spin-handle or ratchet and socket and torque to 15 ft-lbs. The history of the 4L65E goes as far back as the 1960s, when General Motors introduced the Turbo-Hydramatic 350 as a new and improved automatic transmission, a successor to the Powerglide. Call today and talk with our knowledgeable sales staff. Does anyone know all the torque specs for the bolts and anything else that is close by the transmission pump so i know what to properly torque it to as to not damage anything. The TH350 weighs 120 lbs. (right) A reminder: one of the usually most-worn bushings in a 350 is that in the pump body that the converter hub fits into. Here is a video that shows how to use a torque wrench. ATLBIGBOI MEMBER; 1935 OLDSMOBILE; Does anybody know the torque specs on the 350 pan bolts? We hope this video will dispel many myths and confusion surrounding stall speed and torque converter [...], Stator Design, Construction, and Function Episode 4 In this episode of our ongoing Torque Converter 101 series, we go a bit more in-depth in our discussion of torque converter stator design, construction, function, and operating [...], One Way Stator Clutches Episode 3 In this episode, we take a closer look at the various one way clutch options, design, construction, and function that are commonly used in torque converter stators, and how [...], Premium Overhaul Race Kit Box with Kolene Steels. the reliability & strength of General Motors produced the TH350 or Turbo 350 three-speed automatic transmission to equip its Chevrolet, Buick and Pontiac cars beginning in 1969. Discussion Starter • #1 • Dec 21, 2003. bolt circle ONLY (TH350/PG). 5R110W Transmission Torque Specifications ; Ford E4OD Transmission Clutch Clearance Specifications; Ford E4OD Transmission Torque Specifications (1989-1998) General Motors Transmission Info . 1,010 Posts . I can quickly help you or teach you this knowledge. You can omit the center seal, plug this passage, enlarge the 2nd and 3rd feed holes in the stock separator plate and you will have greatly increased the torque capacity of a stock TH350 as well as gained a firmer shift. Even firmer shifts can be accomplished with check ball removal and modifications to the accumulators. TH 350 & TH 400:PIN 92466 (Supplied with Kit) . And also what do I torque the bolts that connect the mount to the crossmember? 4,848 Posts . Identifying the Th400 is really as easy as knowing the differences between it and the TH350. It features an integral bellhousing. TH350 Super Pump Gear Half ATI’s 10+ years of experience making aluminum performance pumps have all been transfered to our latest T-350 Super Pump Half. by Automatic Transmission Service Group Oil Pump Bolt Bell Housing To Engine Block. by Godfrey/Haynes 3,752 Posts . have the same problem? It is far easier than most engine guys think it is. Service Manager. RCR293107 MEMBER; Hi, transmission pan bolts are torqued to 10 1/2 to 13 foot pounds on a turbo 350. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. User Info. The Turbo-Hydramatic or Turbo Hydra-Matic (THM) series was developed to replace both the original … 11/32 in. Send Private Topic View Profile. [...], Hughes Performance® HP2211EBRX valve body TH400 billet aluminum valve body reverse shift pattern (P-R-N-1-2-3) with engine braking, How To Properly Install A Torque Converter Episode 7 Today we’re covering how to properly install a torque converter into an automatic transmission. Discussion Starter • #1 • Feb 10, 2003. This transmission is also known for being strong and versatile, in addition to being quite compact. (middle) (The 1980 to 1986 'C' electronic lock-up I need torque listing for oil pump, pan, timing gear and cover, harmonic balancer, fan bolts, a … read more. Looking in my 350 manual, by Ron Sessions, he says 7-10 ft/lbs (84-120 in/lbs). TH350 Super-Tuning. Shaft endplay should be .015 to .030; use selective shims under the Torrington bearing or selective washers and shims to correct the pump endplay to within specifications. Our price list for our performance transmissions, converters and components is being updated. Remove the transmission from the vehicle and set it up on end so that the torque converter faces up and the tailshaft rests on the ground. 3/8 in. Converter Type Lower Limit Upper Limit; P.G., TH350, TH400, 727: 1,872 inch: 47,55 mm: 1,875 inch: 47,63 mm: TH2004R, TH700R4: 1,745 inch: 44,32 mm: 1,748 inch: 44,40 mm We are pleased to announce the immediately availability of our new Circle Track series of Powerglide transmissions! We use cookies to ensure that we give you the best experience on our website. Torque Spec: 7/16 in. Our base model TH350 has lived at over 600 HP reliably. Find out more about the newest innovations to complement our complete line of products in our press release section. One of the weaknesses noted about this transmission was wobble of th… NOTE: Install the Ultra-Bell using bolts and washers provided. Tuesday, June 20th, 2006 AT 4:05 PM. At Hughes Performance we rebuild and repair transmissions and torque converters. There is also a TH350C and TH250C version that has a lockup torque converter (TCC). No. [...], Thank You From Benji Martin I have been meaning to get ahold of you, tell you a little story, and thank you for all the help you have given me over the [...], The P/G input shaft spline length has changed over the years by different manufacturers, and even today there is no set length or standard length in the industry. improve Some installations require shimming. Remove the screw-in dowel pins, and reinstall the two oil pump bolts in their place. The feeler gage should not fit. 3/8 in. Turbo Hydra-Matic 350 Handbook pump gear set, front pump stator body, torque converter pump hub, and may even cause damage to the internal torque converter components as well as the crankshaft thrust bearing. Can teach you. Hughes Performance specializes in rebuilding and repairing transmissions and torque converters. Thinkstock Images/Comstock/Getty Images. Build it yourself, you know that The old B&M instructions, says 100 in/lbs. Build yours yourself, with help! Dunk your new front main seal in transmission fluid. Turbo 350 transmission, A small amount of sealant should be applied to the washer. Circle Track Series Powerglide Transmissions. Anyone know how much to tighten the bolts that hold the pump to the case? the transmission.) The 11 Y," (TH400) bolt circles will not work. click HERE, ratchet, 1' extension, 9/16" & 1/2" sockets. 500 Posts . (The converter mounting ears will extend over the ring gear on the flywheel.) Overhaul Manual 10360 The number-one choice in GM-powered hotrods. Torque Specifications for GM 5.7L-350ci-V8. The 4L70E transmission is the same as a 4L65E with a speed sensor located in the pump. with TH-350s had chrome bumpers! Using the pan bolt pattern is the easiest way to identify the TH400. Fire @ Will : Torque Converter Bolt Torque Specs. The instructions for the TransGo kit I just put in, says to torque the valve body bolts to 75 in/lbs. Slide it into the recess in the front of your pump. The instructions for the TransGo kit I just put in, says to torque the valve body bolts to 75 in/lbs. How To Properly Install A Torque Converter – Episode 7, Stator Design, Construction, and Function – Episode 4. There must be some clearance here, or the oil pump … the torque converter before inserting the torque converter into the transmission. Save money when you buy your transmission and converter together! Discussion Starter • #1 • Feb 20, 2003. I recommend NOT modifying the 1-2 accumulator. Direct drives cannot be [...], We love 2-speed TH400 transmissions here at Hughes Performance!! How to Change a Turbo 350 Oil Pump by Richard Rowe . 350 Turbo Transmission Specifications by Rob Wagner . Welcome to Hughes Performance - Hughes Performance. This system will accommodate 11" and smaller General Motors torque converters with a 10 o/." This requires resurfacing or replacement of the pump cover to maintain hydraulic integrity. Cylinder Head Bolts: 65 ft.-lbs. BigBob. 2 Replies. Discussion Starter • #1 • Apr 17, 2009. thanks in advance--Mason Hey guys, I found several different torque specs in my manual, but nothing that said it was specifically for the th350 tranny mount. Asides from this, other variants of the TH350 were launched and these are the TH200, TH200C, TH250, TH250C and TH375. The TH350 and 200-4R share both the same length of 27 11/16″ and width at the bellhousing of 19 1/8″. ! the San Fernando Valley or the Los Angeles area. To see an exploded view of a The TH350 uses a mechanical linkage that attaches to the carburetor. Haynes General Motors use a 3/8" wrench attached to a torque converter dust-cover hole using a dust-cover bolt. fuel economy, but It has a distinctive oil pan that is chamfered at the passenger side, rear corner. All TH350 transmissions include a new pan.
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