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.

Is a TH400 manual valve body?

This TH400 valve body is designed for full manual operation: the transmission remains in the same gear as the shifter.

Can you downshift a manual valve body?

Unless the valvebody is set up to allow engine braking, don’t EVER downshift a transmission a manual valve body while the car is moving.

How much HP and torque can a TH350 handle?

How Much Torque Can A Th350 Handle Stock? It is the factory THM 350 transmission’s “generally” capacity that can take 300 to 350 Lb/Ft. The truck versions have a max torque of 3,500 lbs. Less goes into the production of cars.

How much HP can a stock Turbo 400 handle?

About 400-450 HP/TQ is the limit on the stock TH400. With ONE almost free modification and some minor valve body calibration changes, 800 HP on an otherwise stock TH400 is not a problem if it’s assembled well (good endplay, etc), and the 34 element sprag is a wise addition above 450 HP or any drag usage.

Is a Turbo 350 the same length as a Turbo 400?

The overall length of the TH-400 is 38 inches, while the overall length of the TH-350 is 33 5/8 inches, if both use the longest tail shafts available. The TH-400’s body is 25 inches and the TH-350’s body is 21 5/8 inches long.

What does a manual reverse valve body do?

The automatic works the same as a regular one. It will be in drive if you pull it down to ‘D’. If you have a full manual valve body, you only need to manually shift it. When coming up through the gears, the reverse pattern is to keep from shifting into neutral.

What is a full manual valve body?

A fully manual valve body will place the transmission in whatever gear you place the shifter in. No matter how fast (or slow) the car is going. And it will not shift up or down on it’s own.

What is the benefit of a manual valve body?

The manual valve body makes the transmission shift instantly, with zero overlap between shifts. That saves clutches. They also increase line pressure.

Do you need a kickdown cable with a manual valve body?

Manual valve-bodies require no vacuum modulator or kick-down cable.

How much HP can a TH350 handle stock?

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 400 transmission handle?

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