700r4 vs th350 70; Reverse-2. The 700r4 runs in different versions, with modifications made on each upgrade to make it better. I hate a 700r first gear I mean you go what 15 -20 mph in first. 50:1 gears and it works great. wow this is a hard one might cause some dissagrements here. In terms of durability, the TH350 is probably the best overall 4x4 tranny in stock form. Thank you all for your help. Scat cast 3. Remember, the 700R4 is a TH350 + overdrive. The 700R4 has it's place but doesn't suit my needs at all. Mar 2, 2012 · 700r4 pros: 1- great first gear if you dont have a steep rear gear. Nov 14, 1999 · The TH350 & TH400 make better competition trannies 'cause the spacing is better matched to acceleration, whereas the TH700 has too big of a gap from 1st to 2nd to allow the vehicle to accelerate efficiently. Aug 13, 2023 · good point i didnt think about that. com May 10, 2022 · 700R4: Generally, you’ll be looking at higher costs for performance upgrades, especially for high-horsepower applications. But a friend of mines says that I should stay with the 700r4 that's in there. (Along with reverse pattern's and gear Aug 7, 2010 · Shop around for other prices on the 200R you might find one for less. I have a 700R4 in my '40 Chevy behind a strong 350SBC with 355:1 gears and it is a great cruiser. Or is the 400 closer to the length of a 700R4?? Thanks, Steve . The TH400 is a three-speed automatic transmission built to replace General Motors’ two-speed Powerglide transmissions. TH700-R4's rear mount is 2" to the rear of that of the TH350 short tail. These are available from shift works or ebay etc. Which would be a better tranny and would the 700 even fit in a 71 with a 383 stroker? Thanks Ya'all :cheers:. The 350 is the easy solution, the 200R4 only slightly more difficult, and then 700R4 is about the same as 200R4. 73 or so rear gear. SBC have plenty hp and TQ to pull a two speed PG(witch I love). I'd like to go to a trans w/ an overdrive gear for highway travel and have been told the 200R4 is the same size as the TH350 and will bolt up w/o any problem. Apr 4, 2007 · 700R4 vs. Run a 3. 89 block with 1 piece RMS . Unlike the th350 with three gears, the 700R4 is a four-speed automatic transmission. 195cc competition heads. If your using the top one on a th350 I doubt it would work right especially with how its adjusted as there both different. Tunnel modification can come into play on some of the smaller cars. 700r4 has a deeper first gear which is great for taking off, or pulling something at take off. 08 1st gear vs. The 2004R transmission can be compared side by side with other two overdrive transmissions which were also made in the 1980’s – and these are the 700R4 and TH350. ive built th350 to hold Mar 12, 2013 · Re: Transmisson question th350 vs 700r4 Dan you can give me all your parts and have my TH350! haha When I first started on my car I wanted to go the other way and make it a manual transmission. The real problems with the 700R4 is the huge gap in gear ratio going from 1st gear into 2nd, and the fact that it sucks up a lot of HP, much more than a TH350. I know many of the pros and cons of the 700R4 like:-It is very common and inexpensive May 27, 2006 · I'm no pro on this but a STOCK TH350 can hand way more than a 700r. For starters, it is similar to the 700R4 even though it is the weaker variant of the 2004R/700R4 duo. My tranny was a 700R4 and did a pretty good job. When comparing the TH350 vs the 4L60E, there are many differences. i need to know what i can expect in the drivability dept. It is my daily driver and sees quite a bit of highway miles. 1. Here’s what I’m considering: Dimensions Matter 700R4 Length: This transmission measures approximately 30. One of them is the TH350 transmission. but if you like big tires you could keep your likely 3. Thanks. TH400 Transmission. My car with a TH350, 3. This makes either of them a fantastic replacement for the TH350 and TH400 transmissions. I’ve done some research, but I could really use the community’s input on the lengths of these two transmissions and how they affect compatibility in various Chevrolet models. The difference between a 200R4 and a 700R4 is that the 700R4 has a larger gear ratio and more torque capacity, which makes it better for heavy-duty vehicles. The TH350 was released a few years later, as a lightweight version designed for lower torque applications. Thanks for the help. Jul 20, 2010 · TH700-R4 is 3" longer than the TH350 short tail. Later 700R4 units had an electrical component for lock up torque converter. Otherwise I vote for the 700R4. The 700R4/4L60 and the 4L60E can be beefed up for heavy duty use, and they are; just bring money, the parts are certainly there. A few acquaintences have told me the 700R4 will work just as well. The transmission will have to live behind a 454 in a 78 Blazer that is frequently used to tow a small RV (about 3000 lbs). the 2. The 200-4R with some money spent on it comes pretty close though. Sep 3, 2009 · yeah, but the 350 "C" is a lockup, otherwise I wouldn't consider it. One of those "do it right once/cry once" kind of scenarios. 75). 00 4th gear 0. Mar 21, 2008 · Currently the 307 is tied to a leaky TH350. The 700R4 is overkill for your application, it is quite big and heavy. 55 gears out back, preferably 3. The 200r4 and TH350 are one of the few tranny swaps you can make that pretty much all that is nec is to slide the crossmember back a few, and find a way to run the coolant lines. If wanting to keep an auto most would rather skip the 700r4 and go to a 4l80e. 75:1 (0. 69:1 was a notable improvement from the TH350's direct-drive third gear, allowing the new transmission to keep rpm down while cruising on the interstate Dec 28, 2023 · The 700R4 uses a mechanical TV control rather than the vacuum of the TH350. 13's. Jul 31, 2008 · Yes they are. Flat top weisco forged pistons 11:1 cr - afr aluminum 1095- 716. Turbo 350 : In comparison, this transmission can usually be modified for less, making it a cost-effective choice for budget-conscious builds. 00 depends on what you are doing with the car its nice to have the overdrive if you are driving it on the street. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. The new lines went right in with minor adjustment at the radiator connection. How much difference is there in the physical … Apr 26, 2021 · - th350 with short 2. 75 first . Nov 29, 1999 · I would like to hear some advice regarding the durability of the 700R4 vs TH350 for towing applications. 75 crank . Dec 27, 2023 · The 700R4's 30 percent overdrive ratio of 0. 62; Third- 1. 3- can be built for over 500hp, but needs some mods to hold up to track abuse. 29 . ), will the 700R4 fit in the same space where a TH350 currently resides? The vehicle in question is a 47 Plymouth which already has a 350/350 installed. GM made the 4L60/700R4 before the 4L60E. And 700r4 vs Th400 transmission comparison will surely lead you to a final purchasing decision. T-350 with VOD overdrive. Apr 8, 2018 · Nope, the TH350 has a TV cable, no electrical component, just like the 700R4. . 10 depending on the tranny i choose). Design. May 29, 2009 · the R4 has a lower 1st ratio 1st gear 3. 700r4 & th350 share a 27 spline yoke (31 spline th350's exist, but are not the norm) 700r4 bellhousing to transmount 22 3/8" th350 bellhousing to transmount 20 3/8" (w/ 9-1/4" tailshaft housing) 700r4 overall length 30 3/4" th350 overall length 30 5/8" (w/ 9-1/4" tailshaft housing) 700r4 & th350 can utilize the same The goal of our 1953 Chevy pickup build was to create a highway cruiser that was a better version of what may have come from the factory. No idea if they can be interchanged. 00; Fourth- 0. The 200R4 is smaller, plenty strong, and has the OD. 20 and be pleasant to drive still. Aug 29, 2010 · There are pro's and con's to the 350 vs 700r4. 7 the th350 1st gear 2. It was widely used in Chevrolet and GMC rear-wheel-drive vehicles until 1992. I also have other TH350's laying right here that have the stock 2. Dec 13, 2002 · I just want you guys oppinion. 25 2nd gear 1. When comparing the 200-4R (often called the 200r4) vs the TH350 there are quite a few differences, and also quite a bit in c Feb 9, 2009 · Looking to build a dual purpose TJ and was wondering if I would be ok with the 700r4 or just lose the extra gear and stick with the th350. 67:1 (0. If you are to compare the th350 vs. I would like to replace the TH-350 transmission with a TH-700-R4. We used the stock f Mar 24, 2017 · Differences between the TH400 and TH350. Glide. See full list on autocarneed. 550 308 cfm@ . 67) while the TH350 has an overdrive ratio of 0. 52 that is in the TH350. Mar 21, 2006 · Does anyone know where I can find an article or write up regarding horsepower losses with each transmission listed above. My van and 700R4 are equipped with electronic speedo, so I currently have no speedometer. The 700R4, also known as TH700R4, THM700R4, 4L60, or 4L60E, is a four-speed overdrive, longitudinally positioned, automatic shift transmission introduced in 1982 as the TH350's replacement. 5 inches from Jan 29, 2009 · 69 Camaro -originally a LM1 car. 73 gears, and 27" tall tire turns about 3200 RPM at 70 MPH. 3Vortec in my '37 Terraplane with 3. The gearset might not act as a noticeable difference between Th350 vs Th400, but it greatly determines the efficiency of both systems. 11:1 Dec 28, 2015 · Q: I have a 1941 Ford sedan with a small block Chevy. When comparing the 200-4R (often called the 200r4) vs the TH350 there are quite a few differences, and also quite a bit in common. Apr 3, 2018 · The TH350 was GM’s go to transmission for light duty vehicles from the late sixties through the early eighties, that is until the 700R4 and 200-4R began to replace it. 62 3rd gear 1. Th350 has the reverse-cut planetary gearset, while Th400 has a forward-cut spiral gearset. 54 first gear would have been ideal. This makes the 700R4 more fun, because you hear the RPM rev quicker when leaving a stop and ending higher than the normal path for 200R4. 06, compared to the 200R4 2. 700r4. The TH350 uses a mechanical kick down switch, whereas the TH400 uses an electric one. An NV4500 is a pretty easy swap and nets best of both worlds but in a 5 speed package. The 700r4 and 4l60e are pretty much the same 700r4 detent 4l60e elec Jul 1, 2017 · The TH350 uses a kickdown cable vs the TV cable of the 700R4. However, I would like to upgrade if possible before swapping a tranny in. My drivetrain is a SBC and D44's with 5. TH350 (bellhousing pattern - Chevrolet, BOP, Fit-All) 6" Tailshaft: 27 11/16: 21 5/8: 20 3/8: 3 3/4: 19 1/8: 700R4 4L60 (4L60E 1993-1995) (bellhousing pattern Nov 28, 2005 · 700r4 vs. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4. i currently have a th350 & 3. I have since found a 700R4 on Craigslift very reasonable. Jan 6, 2018 · Both transmissions use the same exact gear ratios with a final overdrive of . Jump to Latest An extra benefit is the 3. Mar 31, 2018 · The TH350 was GM's go to transmission for light duty vehicles for at least 20 years. They can use the same manifold bracket, but their attachment to the carb lengths are slightly different. The typical TH350 has a mechanical speedo gear. Dec 28, 2020 · I know that the 700R4 is longer than a TH350, but is the exterior case the same size? In other words, beside the driveshaft and crossmember modification (and linkage etc. 700R4 and 4L60E Differences difference between th350 and th400 (5 key Differences) 1. 06; Second- 1. Mar 24, 2011 · Yes it works exactly the same. The 700R4 also has a lockup torque converter, which improves fuel efficiency and performance at high speeds, while the TH350 does not have this feature. 700r4, the primary thing that differentiates them is the number of gears. The detent plate, where the lever stops, is different. This is true for the TH400, and believe it to be true for the TH350 as well. May 9, 2023 · The bottom cable is what I see all the time on a th350 and the top one as it states on the package is on a 700r4 which is also called a 4l60. and the lower first ratio if you are a bit short on power. I just didn't know if the splines were different or if it worked the same way?? Mar 27, 2004 · I lost the tranny in my K5 the other day and I'm gonna replace it. TH350, Powerglide, and M21 all have the same length and output shaft spline count - therefore, no driveshaft mods required when swapping. if i were to use a 700r4 what would my rpms be @ highway speed? Mar 24, 2016 · The TH350 3 speed became the 4 speed manually controlled 700R4/4L60 which became the computer controlled 4L60E. Dec 1, 2018 · The 700R4 has a 1st gear ratio of 3. The difference is in the actual shift linkage bracket which gets bolted to the trans (column and floor shift each uses a different bracket). 304 cfm@. Any recommendations? Sep 4, 2014 · TH350 is $1000-1200 which I can still comfortably afford right now, 700R4 is $2500-$3000 which I don't really have right now but I can force myself to cough it up and squeeze my neck for the next 2 months (which I really prefer not to do with 3 kids and a wife). 23 for cruising. 2- Has overdrive. Oct 3, 2001 · I just want to know if the TH400 and TH350 are comparable in length. I don't care if it's locking or not, as long as it works without screwing up my tranny. Jul 9, 2003 · Try this site - www. May 27, 2006 · A 700R4 is much better than a TH350, and the only flaw with their design is a lack of a reliable trans brake for drag racing. @ 62mph i'm @ 3000rpm, needless to say i cant afford to drive my 57 far. I have a good 700R4 that came w/ the 350. Chevy Tech 2004R vs. It has one more stop between OD and 1, but the sweep is the same, P, R, N, OD (where D is on the TH350) all still line up, so it will work. if i swap trannies. I like the idea of overdrive, but I have read several things about problems with the 700R4. TH350. IMO, the winning transmission would depend on what you're using the truck for. Mar 21, 2022 · The 700R4 has an overdrive gear ratio of 0. com, they have all you need to know about comparing the older TH350/400 autos to the newer Overdrives. a th350 vs 700r4 will have a very different first gear too, so the rear ratio could probably come down to 3. 74. Jun 5, 2022 · What is the difference between a 200R4 and a 700R4? There are many different types of transmissions for cars. The 700r4 transmission started with a 27 spline input shaft, with upgrades made to 30 spline input. I have to admit I haven't had the best of performance with the last 700r4 I put in my 1964 c-10 truck. 600 Sep 14, 2007 · How can I tell by looking, the difference in a torque converter for a th350 and a 700r4??? From what I understand they won't interchange. Feb 17, 2017 · The 700R4 I do not know if there is any fitment problems, maybe some Tunnel mods and the OD would give you low RPMs on the HWY with those 3. 73 or whatever stock Oct 17, 2012 · Whenever I do that, a nice 700R4 would be nice to have, I'd definitely go for it. Dec 24, 2012 · The mounting is close enough that it will fit. Swapping from a TH350 short tail to a TH700-R4 will require shortening the driveshaft 3". Jan 20, 2020 · A 700r4 will sacrifice some dependability and simplicity for an OD gear ratio compared to your th350. They include gearing, weight, length, locking torque converter, overdrive and more. 700r4 and 4L60E Gear Ratios: First- 3. Also would this be your next step in getting more power on a budget. 67 ratio in the 200R4. 200R4. 7:1, which is a 30% overdrive. 52 first gears in them - 385 CI small block. 52 3rd gear 1. It was built into high-torque, high-horsepower cars from GM’s lineup. A three speed,,,,shoot. Dec 6, 2012 · i think i have conflicting info. Your 71 will not have the throttle brackets needed, once your get to this point look at the various parts available in the catalogs, there are several ways to do this that minimizes effort and cost not that it’s a killer on either. Overview: TH350 vs. Save Share 4x4 Talk. Plus you can get a TH350 rebuild for about 400 dollars a 700r at least $800. . If you go with a TH350 and you cruise a lot and go on the highway, I wouldnt go any higher than 3. Jump to Latest We have a 68 Malibu with a very mild SBC and a TH350 tranny. The TH350 is certainly smaller than the TH400 and can usually fit into nearly any rear wheel drive Chevrolet passenger car with no problem. The posts about it are archived, it was a good discussion. Feb 28, 2010 · It shares the same drive shaft length with the TH350. But I concluded it was a bit more complicated than what I wanted to try. Sep 29, 2010 · C3 Tech/Performance - 700R4 vs TH400 or TH350 - Greeting! I started a thread earlier about the difference in the 400 and the 350 trannies. Be sure to connect the lines to the trans before putting the trans in the tunnel, otherwise, they are hard to reach. Jul 10, 2004 · The 700R4 can be built just as strong, and actually stronger than a TH350, since it is roughly based on the TH400. 11s With the 700R4 you will likely have to relocate your Trans Cross Member and get a new Driveshaft as the length of the one for the TH350 is different Also good time to upgrade the U Joints to 1350 sizes Sep 13, 2006 · TH350 & 700R4 Basic Facts. The two newer 4spds, 700r4 and 4L80 are essentially the same, except the 4L80 REQUIRES a computer to control it, or one of the many computer harnesses you can buy to fit in your car if it was not equipped with a 4L80. We'll break them all down. Good gear ratios for driving around town. 42 or 3. The 700R4 has a . I just swapped my 350/TH350 combo for a 454/700R4 and bought new pre-bent TH350 lines (I think from the RightStuff). Jun 25, 2005 · I've thought the same thing many times, an OD version of the TH350 with it's 2. The th350 transmission was finally phased out in 1984 and replaced with the 700R4 since the 700R4 had become people’s choice. Scat 6 inch rods . 73 or 4. Beginning in the early nineties, the 4L60E began to be the go to transmission for GM light duty cars and trucks. I always hear that a 700R4 is a hp hog and that TH350's and powerglides are s Dipstick Location Flexplate Bolt Pattern Bellhousing Depth; Case Fill: 10 ½” – 157 teeth: 5 7 / 8 “ Pan Fill: 11 7 / 16 ” – 164 teeth 6 1 / 4 “ Case Fill: 11 7 / 16 ” – 164 teeth Jan 2, 2018 · Looking to swap out my transmission and can’t decide between the 700R4 and the TH350. I already have a 700r4 that just needs rebuilding and I am going to go with the full B&M transkit for it. What a TV Cable does is to serve as a primitive throttle position sensor enabling either transmission to maintain the best RPM (revolutions per minute) possible for fuel economy and peak performance. This is a daily driver car for us and we are looking at upgrading to Mar 5, 2006 · Kirk, a 200R4 is the best for you vs 700R4. I would love to know if a TH350 really gains you anymore power vs say a 700R4 or even a P. I run a TH350 behind a 4. Jan 9, 2003 · Currently I have a th350 in my truck and it does ok when towing, just need more first gear and/or lower rear end gears (which are getting swapped to 3. 70 ratio vs a . Wont necessarily get "better" gas mileage though. The 200-4R and 700R4 use a Throttle Valve (TV) Cable or detent cable instead of the kick down cable that controls the TH350 and TH400 transmissions. Gearset. I really had decuded on using the th 400 in my monte carlo project car. Apr 1, 2018 · There are many differences between the TH350 vs 700R4. 06 2nd gear 1. 36 rearend gear. 700R4 vs. T350 is stronger of course, needs less done to it to handle some abuse. ehmx gdptrqr lbjnrb ioojfv xfm vqlll ypwl khitreg uuxak doga