How much horsepower can a TH400 handle?
How much horsepower can a TH400 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.
What is the difference between a Turbo 350 and Turbo 400 transmission?
The TH-350 was a low-torque transmission that was used in heavy cars. With modification, the TH-350 could be used as a high-torque transmission in a light car. The TH-400 was a high-torque transmission that was used in heavy cars — it was a much stronger transmission than the TH-350.
Can a GM Turbo 400 be used as a 4WD transmission?
This transmission makes an excellent conversion transmission due to its adaptability into most Jeeps longer than CJ5s. Both 2wd and 4wd versions of the Turbo 400 can be used equally well, and there are no inherent advantages to either one once you have installed our adapter assembly.
When did the Turbo 400 TH400 come out?
Turbo 400 TH400 Transmission. Introduced in 1964, the TH400 is an automatic shift, three-speed, longitudinally positioned transmission. It is highly regarded for its supreme durability. This model has a conservative rate of 450 ft. lbs of input torque, though that can be easily upgraded with aftermarket improvements.
How do you hook up a Turbo 400 kickdown?
This electrical input powers up a solenoid in the transmission that accomplishes the same results, with higher line pressure and a signal to downshift the transmission. Often when a TH400 is swapped into a different vehicle, this downshift electrical switch is overlooked.
What was the variable pitch stator on the Buick Turbo 400?
An interesting variable pitch stator feature of the Turbo 400 was available in 1965-1967 Buick, Olds and Cadillacs. These are identified by the two-prong plug on the case. While 1970-1974 models also had this plug, it is for the transmission controlled spark system.
This transmission makes an excellent conversion transmission due to its adaptability into most Jeeps longer than CJ5s. Both 2wd and 4wd versions of the Turbo 400 can be used equally well, and there are no inherent advantages to either one once you have installed our adapter assembly.
Where can I find a Turbo Hydramatic 400 transmission?
The Turbo-Hydramatic 400 (TH400) automatic transmission can be found behind large, powerful engines on Chevrolet and GM cars and trucks from the factory, as well as Jeep, Cadillac, Oldsmobile and many others. While the unit is indeed one of the stoutest of its kind, trouble can still occur.
What kind of bushing does a Turbo 400 use?
The upgraded center support for the Turbo 400 features a bronze bushing that virtually eliminates premature sprag failure. It is highly recommended for competition applications.
An interesting variable pitch stator feature of the Turbo 400 was available in 1965-1967 Buick, Olds and Cadillacs. These are identified by the two-prong plug on the case. While 1970-1974 models also had this plug, it is for the transmission controlled spark system.
