Will a 400 transmission fit a 350?
Automatic transmission fans will tell you that a. A typical TH400 drains almost 50hp to drive it, whereas a TH350 will operate at a loss of only about 35hp. The TH350 can take a beating too-with race modification, a TH350 can work with engines rated at more than 400hp.
Is a TH350 and a TH400 the same length?
a short shaft th-350 and th-400 are very close to the same overall lenght. Close enough that the same driveshaft can be used. The yokes are 100% diff though. The th-400 yoke is bigger, more splines, and may take a bigger U joint.
Can you swap a TH350 for a TH400?
If you’re replacing a TH350 trans, you can relocate the factory crossmember mounting holes rearward approximately 1 inches or swap in an original TH400 crossmember. A TH350/PG slip-yoke will work with the TH700-R4 trans, but a TH400’s will not.
Is a TH350 stronger than a TH400?
The TH350 uses a mechanical kick down switch, whereas the TH400 uses an electric one. A lot of people claim that he TH350 has less drivetrain loss than the TH400, which means that all things being equal, the TH350 is going to get more power to the rear wheels from an engine with equal power.
Is a 350 Turbo transmission good?
A turbo 350 transmission is the perfect transmission for your entry-level sports car, light truck, or rally race. High performance and tough parts give this transmission the ability to handle a variety of use cases.
What is the length of a TH350 transmission?
Chapter 2: Transmissions: Transmission Lengths
| Transmission | Case to ext. Housing | Overall Length |
|---|---|---|
| THM 250 | 21 5/8″ | 27 5/8″ |
| THM 350, 350C (short tail) | 21 5/8″ | 27 5/8″ |
| THM 350 (long tail) | 21 5/8″ | 30 5/8″ |
| THM 400 (short tail) | 24 3/8″ | 28 1/4″ |
How much HP 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.
How much HP does a TH400 Rob?
I have seen it average 30-35% power loss on 700-900 hp motors.
What’s the difference between GM TH400 and TH350 transmission?
The TH400 transmission takes advantage of an electrical slide switch controlled by the throttle linkage. On the other hand, the TH350 uses a mechanical cable kick-down that is connected to the throttle linkage. Despite the difference, the TH400 is considered the heavy-duty version of the Turbo-Hydramatic 350.
What are the gear ratios on a TH350?
TH350 can work with engines rated at more than 400hp. Ratios on the TH350 are first gear, 2.52:1; second gear, 1.52:1; third gear, 1.00:1; reverse, 1.93:1. When General Motors launched TH400 in 1964, it was evident in Buicks and Cadillacs and Chevrolet and Oldsmobile cars a year later.
What’s the difference between a 700R4 and a TH350?
Length – The TH350 is a shorter than the 700R4, so if you were going to swap one for the other, you’d need to have your driveshaft resized or replaced. Gear Ratios – The TH350’s gears are placed closer together (despite having less of them).
Where is the vacuum modulator on a th 350?
TH-400 was a high-torque transmission. It was used in heavy cars. It was used in light cars. The vacuum modulator is located on the right front of the transmission. TH-350 had a square pan, with one corner cut off.