Is a th400 better than a TH350?

1. Is there a big difference between a Turbo 350 and Turbo 400 – and which one do I want? They are completely different transmissions. The Turbo 400 is larger, longer, and heavier than the Turbo 350 and was designed to live behind higher-torque applications such as big-blocks.

What does th stand for in TH350?

The TH350 (Turbo-Hydramatic) transmission identification, decoding, and super-tuning are what sets it apart from other transmissions. Its identification, for instance, helps you to differentiate this one-piece unit from other transmissions launched by General Motors.

What year did they stop making TH350?

First introduced by GM as a replacement for the Powerglide in 1969, The TH350 was the stalwart of the GM transmission line until the mid-1980s. It remained basically unchanged through its entire life span until 1981, when an electric overdrive solenoid was added and the transmission was renamed the TH350C.

How can you tell the difference between a Turbo 350 and a Turbo 400?

The TH-350 uses a square pan, with one corner cut off. The TH-400 uses an oblong-shaped pan with one side having a “hump” in the pan and one side is curved while the other two sides are straight. The TH-400 pan also has two circular indentations on the humped side of the pan.

Does TH350 have overdrive?

The 700R4 has an overdrive while the TH350 does not. Overdrives allow for high-speed cruising, which saves fuel while lowering torque.

Does a TH350 have a kickdown cable?

On the 3-speeds (TH350, TH400, etc.), the “kickdown” is indeed just that. When actuated, the transmission shifts down into 2nd gear. That is all, and as such, is NOT required unless you want that functionality. On the OD transmissions (700R4, 2004R, etc.)

Is a TH350 the same as a Turbo 350?

The TH350, also known as THM350, Turbo Hydramatic 350, or Turbo 350, is a three-speed, automatic shift transmission developed by Chevy and Buick and introduced in 1969. It was typically coupled with Small Block V6 and V8 engines and was used in most of General Motors rear-wheel-drive cars and trucks until 1984.