Does A Turbo 400 Have Overdrive?

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..

What vehicles have a Turbo 400 transmission?

Generally, here’s a list of cars that used the TH400 transmission:1965-1967, 327 V8 (Rambler/AMC)1968-1971, 350 V8 (Buick)1969-1972, 225 V6 (Buick)1972-1975, 232 I6 (AMC)1975-1979, 258 I6 (AMC)1972-1979, 304 V8 (AMC)1972-1979, 360 V8 (AMC)1974-1975, 401 V8 (AMC)More items…•

Is a Turbo 400 transmission good?

The TH400 is an automatic shift, three-speed, longitudinally positioned transmission. It is widely regarded to be a supremely durable and legendary transmission. The TH400 is conservatively rated at 450 ft. lbs. of input torque. Aftermarket building techniques take it well past that figure.

How can I tell if I have a 400 Turbo transmission?

Look at the transmission pans on both transmission. Both transmission pans have 13 bolts, but they have a different shape. 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.

How much is a Turbo 400 transmission worth?

selling it as a good unit and with a “it will work” or your money back warrantee, it should be worth $150-200. There are many shops that sell a stock rebuilt TH400 for $600.

How much does it cost to rebuild a Turbo 350 transmission?

As for prices to rebuild, I can still get a standard TH350 rebuild with shift kit for about $300 there. That’s what it cost me to take my buddy’s TH350 in 2 years ago. That’s carry-in price, of course, and I think it included a rebuilt torque converter, too.

Does a Turbo 350 have overdrive?

The 700R4 has an overdrive while the TH350 does not.

How much does a Turbo 400 transmission cost?

Rockcrawler 400 – 450 HP/TQ capable Price is $2500.

What year is the best Chevy 350 engine?

L31 (2002) From a purely technical standpoint, the most recent version of the Chevy 350 would naturally be the best of the bunch. Marketed as the “Vortec 5700” engine, but known internally by the moniker of L31, this engine was used primarily in GM vans and trucks until 2002.

Is a th350 stronger than a 700r4?

While a vehicle with 4.11 gearing may scream down the highway with a a TH350, it’s going to keep the engine in the power band longer. The 700R4 goes from a 3.06 -> 1.62 1-2 shift, which is way more aggressive than the Turbo 350’s 2.74 -> 1.57. Simply put, the TH350 is going to keep the vehicle in the power band longer.

Does a Turbo 400 have a kickdown cable?

Instead of a linkage or cable, the TH400 uses an electrical switch that is most often mounted on the carburetor. … The factory used a switch located on the carburetor or on the throttle linkage under the dash that at WOT supplied voltage to the transmission.

What is the difference between Turbo 350 and Turbo 400?

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 better than a th350?

Automatic transmission fans will tell you that a TH400 is a stronger transmission, but the TH350 is shorter (meaning easier to adapt in smaller-bodied cars), and it saps a lot less horsepower from the engine to make it work. …

What’s better 700r4 or Turbo 400?

The TH400 is much stronger, but it doesn’t have overdrive and the first gear is only 2.48:1. The 700R4 has an overdrive gear (0.7:1), and a 3.06:1 first gear, but it’s not as strong. So it depends on what your using it for and how much power you have.

How many gears does a Turbo 400 have?

TH-400 transmissions are three-speed automatics, with a 2.48:1 first gear. Reverse gear is 2.08:1 and third gear is an even 1 to 1. Turbo 400s use three tail shaft lengths; the most preferred units for a GM swap would have the short 4-inch tail shaft.