How much weight can a TH350 handle?
The TH350 can easily handle 600 lb/ft when properly built. It doesn't take anything super fancy. I have a couple at 600+ using a stock intermediate roller clutch setup.
How much horsepower does a Turbo 400 TH350 have?
Usually, TH350 will have a capacity of up to 450 horsepower in the first stage. However, if you are looking for something more powerful, you can go for the PN PA35102 version with up to 550 horsepower for approximately $1,200-1500. Are all Turbo 400 the same?
Should you buy a three-speed transmission for your TH350?
Odds are most readers employ a really nice big- or small-block built on a workingman’s budget. These real-world engine combinations don’t require a transmission with a royal pedigree. We are also willing to bet that a three-speed TH350 is more than capable of harnessing most popular packages.
What is the difference between a TH350 and a Powerglide?
The biggest difference between the two, besides internal workings, is the TH350’s three forward speeds verse just two speeds of the Powerglide. The three-speed automatic transmission enjoyed a service life of nearly 20 years as it was stuffed behind small-blocks and V-6 engines in most rear-wheel drive cars and trucks through 1984.
Can a TH350 handle 600hp?
Our base model TH350 has lived at over 600 HP reliably.
How much can a TH350 take?
The factory THM 350 transmission "generally" can take about 300 to 350 Lb/Ft. of torque max for the truck versions. Cars are a little less. In the 80 versions where they started using an electronic stall converter they don't hold up well at all.
Is the TH350 a good transmission?
The TH350 is an automatic shift, three-speed transmission. It is widely considered to be one of the greatest of automatic transmissions ever built.
Is a TH350 or TH400 better?
The Turbo 350 (top) and the Turbo 400 (bottom) are the quintessential GM automatic transmissions. Both are three-speeds, but the Turbo 400 is physically larger and designed more for the torque capacity of big-block engines.
How much HP can a TH400 handle?
About 400-450 HP/TQ is the limit on the stock TH400.
How much horsepower does a 700R4 have?
1000+ HPThe TCI Super StreetFighter GM 700R4 Transmission is designed for higher horsepower and higher torque street/strip applications. Features: Capable of handling 1000+ HP. 300M input shaft allows for higher torque capacity.
Does TH350 have overdrive?
But the TH350 and TH400 three-speed versions (and their two-speed Powerglide cousin) fall short when it comes to highway cruising. The reason for this is the conspicuous lack of an overdrive gear.
Are all Turbo 350 transmissions the same?
Externally, all the TH350 transmissions look the same; however, internally there are some differences. Depending on the engine size of the car the transmission was removed from, it can have anywhere from 10 to 18 friction discs and 10 to 18 steel clutch plates inside.
What transmission fluid does a Turbo 350 use?
Dexron III is what you need. Myself, I always use the synthetic. I would definitely recommend you removing the pan to change the filter and fluid unless it's verified the P.O. recently did it.
Is a TH350 a 3 speed?
TH350 Transmissions 101 The TH350 transmission is a three-speed automatic transmission launched by General Motors in vehicles from 1968. It can also be said this model was created as a collaboration between Chevrolet and Buick, where the transmission was made to be compact, strong, and versatile.
How do you tell the difference between a Turbo 400 and a Turbo 350?
Another quick way to identify a Turbo 400 is to look at the kick-down mechanism. Unlike the Turbo 350, instead of a “kick down” cable, it uses an electrical slide switch, which is controlled by the throttle linkage. Generally, in '68-'71 vehicles, the switch is located on the carburetor.
Will a Turbo 350 torque converter fit a Turbo 400?
Lots of guys went the other way--installing a TH350 converter on a TH400 for less rotating weight and maybe a tiny increase in stall speed. Of course, the "Switch-Pitch" TH400 converters, and the TH350C converters won't interchange with each other or any other "regular" 400 or 350 converter.
How much does a TH350 cost?
The Street Smart TH350 Stage 1 (PN PA35101)—transmission only—shows a $1,387 retail price tag, but no one pays retail anymore.
What is the difference between a TH350 and a Powerglide?
The biggest difference between the two, besides internal workings, is the TH350 ’s three forward speeds verse just two speeds of the Powerglide. The three-speed automatic transmission enjoyed a service life ...
What Is Turbo?
Before we get into the specifics of the th350 and th400, let’s take a look at the basics of Turbo. Basically, Turbo is a form of an air pump with the critical task of pushing more oxygen into the engine when needed.
Features of TH 350
TH 350 full name is General Motors Turbo Hydra-Matic 350. In 1969, TH350 first appeared on the market as a three-speed automatic transmission. However, it was later improved and replaced by a two-speed gearbox.
Features of TH400
Compared to the TH350, the TH400 was introduced by General Motors earlier, in 1964. TH400 is a three-speed automatic transmission located in a vertical position just behind the engine.
TH350 vs TH400
Having followed the TH350 and TH400 characteristics, you may have noticed some differences between the two turbos. However, the following are the primary and most specific differences between TH350 and TH400:
How To Distinguish TH350 And TH400
As mentioned before about the typical differences between the two turbo types discussed above, it is sometimes tough to tell them apart.
FAQs
Some questions we regularly receive from customers that you may also be interested in:
Conclusion
Finally, before ending, hopefully, the information mentioned earlier can help you soon distinguish the difference between TH350 and TH400.
