What is a manual valve body TH400?
Get maximum performance and quicker ETs with this full manual valve body. Engineered to allow full manual control of the valve body, for quicker shift timing and higher line pressures.
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. Again, that saves clutches.
How much HP can a built 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.
How many times does a TH400 shift?
I tested it at least 6-8 times and this is what I found. The trans. will shift from 1st-2nd under WOT between 4200 rpm and 4500 rpm’s. It seems to favor the lower end some. The 2nd-3rd shift under WOT happens between 4100 to 4300 rpm’s.
What makes a TH400 shift?
In a stock TH400 all W.O.T. shifts are a balance between the governor & line pressure. 1-2 is also a “forced” shift. You can leave the lever in low but it will still shift to second gear when the governor overrides the line pressure.
What is reverse pattern TH400?
4VB/RPFM. This reverse pattern full manual valvebody is designed for pro-street and drag race applications. Proprietary design features instant 1-2 and 2-3 upshifts. This kit includes a host of upgraded components to improve transmission performance and durability.
Do you have to shift a manual valve body?
A manual valve body changes things so your automatic must be shifted manually and provides more positive shifting. People go both ways an which to chose in a street application.
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.
What is a Turbo 400 transmission worth?
Which is better Turbo 350 or Turbo 400?…How much is a TH400 transmission worth?
|This item GM TH400 Turbo 400 Stage 2 4×4 Transmission up to 650HP
|GM Turbo 400 Conversion Kit Transmission TH400 Stage 2 Race Up to 650 HP
What kind of transmission fluid goes in a TH400?
No one can deny that Dexron VI is a good fluid, but it is designed for modern models of TH350, TH400. If you use it for older generations, the result will not be the same. Instead, you can go for Dexron III.