What is the TH350 transmission rated for?
The TH350 transmission is a highly versatile and durable automatic transmission that has been widely used in a variety of vehicles, from muscle cars to trucks. This transmission is known for its robust design and impressive power-handling capabilities.
Torque Capacity and Power Rating
The TH350 transmission is rated to handle up to 350 lb-ft of torque. This makes it a popular choice for high-performance applications, as it can reliably transmit power from engines producing significant amounts of torque. The transmission's power rating is typically around 250-300 horsepower, depending on the specific application and configuration.
Gear Ratios and Shifting
The TH350 transmission features a three-speed design, with gear ratios of 2.52:1 (first gear), 1.52:1 (second gear), and 1.00:1 (third gear). This gear ratio setup provides a good balance of acceleration and top-end speed, making the TH350 well-suited for a wide range of driving conditions.
The transmission's shifting is controlled by a hydraulic system, which ensures smooth and responsive gear changes. The TH350 is known for its reliable and consistent shifting performance, even under heavy loads or high-performance driving conditions.
Compatibility and Applications
The TH350 transmission was widely used in a variety of vehicles, including:
- Chevrolet and GMC trucks and SUVs
- Pontiac, Oldsmobile, and Buick muscle cars
- Some Cadillac models
- Various other GM vehicles from the 1960s through the 1980s
Due to its widespread use and proven reliability, the TH350 transmission remains a popular choice for enthusiasts and builders looking to upgrade or replace the transmission in their classic or high-performance vehicles.
Do I need the kickdown cable on a TH350?
Other than the convenience of automatic downshifts into passing gear at highway speeds, there's no real need for a simple kickdown cable on those transmissions like this TH350 that have a vacuum modulator.
How much HP is a TH350 good for?
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 limit on the TH350?
I would normally say the limit for a TH350 is around the 800 Hp range. We've had them survive 700 RWHP for several seasons without issue.
What is better, turbo 350 or 400?
Both are three-speeds, but the Turbo 400 is physically larger and designed more for the torque capacity of big-block engines.
How much power can 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.
How much HP can 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.
When did GM stop using TH350?
For the 1981 model year, a lock-up torque converter was introduced which coincided with the new EMC control of most GM cars; this version is the THM350-C, which was phased out in 1984 in GM passenger cars for the 700R4.
Can you run a TH350 without kickdown cable?
Other than the convenience of automatic downshifts into passing gear at highway speeds, there's no real need for a simple kickdown cable on those transmissions like this TH350 that have a vacuum modulator.
What is the strongest GM transmission?
The 10L90E is by far the biggest and heaviest modern automatic transmission in GM history, but it's also the strongest and offers amazing performance and economy when matched with a Gen V LT engine. This is part of the newest technology in the performance world.
Can a TH350 handle 800HP?
Simple yet strong. We have an excellent track record with our TH350's. Deep into the 10's without failure, they have proven to be a very tough unit for a reasonable price. We feel they are a very good choice in cars up to 600 HP/TQ but capable of up to 800 HP/TQ especially in lighter cars.
