What transmission is better 350 or 400?
When it comes to choosing between a 350 or 400 transmission, there is no clear-cut answer as to which one is definitively better. Both transmissions have their own unique strengths and weaknesses, and the "better" option ultimately depends on your specific needs and preferences.
The 350 Transmission
The 350 transmission is a classic and widely-used automatic transmission found in many General Motors vehicles. It is known for its durability, reliability, and relatively simple design. The 350 is a three-speed transmission, meaning it has three forward gears. This makes it a good choice for everyday driving, as it provides a smooth and efficient power delivery. The 350 is also relatively lightweight and inexpensive compared to some other transmission options.
The 400 Transmission
The 400 transmission is a four-speed automatic transmission, also commonly found in GM vehicles. It is generally considered to be a stronger and more robust transmission compared to the 350, making it a better choice for high-performance or heavy-duty applications. The 400 can handle more horsepower and torque than the 350, and it also provides better acceleration and higher top speeds.
Comparing the 350 and 400
- Gear Ratios: The 400 transmission has a wider range of gear ratios, which can provide better fuel efficiency and performance, especially at higher speeds.
- Durability: The 400 is generally considered to be more durable and capable of handling higher levels of power than the 350.
- Weight: The 350 transmission is lighter than the 400, which can be an advantage in some applications.
- Cost: The 350 transmission is typically less expensive to purchase and maintain than the 400.
Ultimately, the choice between a 350 or 400 transmission will depend on your specific needs and preferences. If you prioritize everyday driving, fuel efficiency, and cost, the 350 may be the better option. However, if you need a transmission that can handle more power and performance, the 400 may be the way to go.
Is a higher speed transmission better?
The lower gears offer faster acceleration, while the higher gears are tuned for better fuel economy and cruising at higher speeds with lower engine RPMs.
Is a 400 transmission good?
Most four-wheelers respect the TH400 for its strength. Its only knocks are the long housing (which is still shorter than the newer OD automatics) and the lack of a fourth (Overdrive) gear. This beloved automatic made its first mass-production appearance in '64 Cadillacs and Buicks as the Super Turbine 400.
Is a TH400 better than a TH350?
The TH400 is the stronger transmission. It's built heavier and larger than the TH350, with heavy-duty applications in mind. Even later versions of the TH400 continued to focus on handling high-torque, high-horsepower input.
What is the best transmission to use?
That depends on your needs and driving habits. If you want something simple that's easy to use, go with an automatic transmission. If you want better fuel economy, consider a CVT. And if you prefer the traditional driving experience, go for manual transmission.
How much horsepower will a TH350 handle?
The Stage 1 TH350 is rated up to 450 hp. Those seeking something a little stronger can check out the Stage 2 version (PN PA35102) that holds 550 hp and retails for $1,500 with a real world street price of $1,175 from most vendors.
What is the difference between TH350 and TH400?
The TH400 is the stronger transmission. It's built heavier and larger than the TH350, with heavy-duty applications in mind. Even later versions of the TH400 continued to focus on handling high-torque, high-horsepower input.
What is the weakness of the 700R4?
Problems With the 700R4
Early 700R4 transmissions came with the less desirable 27-spline input shaft. Later units, those produced after 1984, featured 30-spline input shafts. In high-power applications the lower spline count can be more likely to break.
What is the difference between t350 and t400 transmission?
The 400 is significantly larger, heavier and turns more of your precious horsepower into transmission fluid heat. It was designed for big blocks in trucks so it can handle higher torque stock for stock but the 350 has all the aftermarket support to take it to the same levels.
What engines bolt up to a TH350?
The front face TH350 is natively compatible with either the Chevrolet 90 degree “Small Block” & “Big Block” patterned engines, including the V6, V8, I6 & Iron Duke I4.
Which transmission lasts longer?
One of the reasons manuals tend to last longer is because drivers can control the amount of shifting. If, however, you get a little trigger happy with the gear shift, you're compromising potential fuel economy and the lifespan of the transmission.
