The Turbo 400 is primarily constructed of cast aluminum, with the bell housing being integrated into the transmission and also made of cast aluminum. Some areas are cast iron, such as the center support for the transmission. The TH400 is 24.37” long and comes in at a weight of 135 pounds dry.

How much does a Turbo 400 transmission weigh?

Features of the TH400 Transmission Weighs 135 pounds without fluid. Bell housing integrated into the transmission. First gear: 2.48:1, Reverse gear: 2.08:1, and third gear is an even 1 to 1.

How much does a Turbo 350 transmission weigh?

The TH350 weighs 120 lbs. It has a distinctive oil pan that is chamfered at the passenger side, rear corner.

Is a 700R4 better than a TH400?

For a daily driver on the highway a 700R4, for a mudder truck definitely the TH400. For any rig it’s going to depend on the purpose. 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.

How much horsepower can a Turbo 350 transmission 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. Both transmissions come with a standard one-year warranty.

What’s the difference between 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.

Is a TH400 better than a TH350?

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.

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.

Is a TH350 good for towing?

TH350 is a good trans. A quality transmission cooler is a good thing to help insure the transmission doesn’t overheat. Electric brake controller is a must when towing with a 1/2 ton.

Is a TH400 good for towing?

In general, the Turbo 400 can be built to handle as much as 500 hp and tow up to 13,000-pound trailers-although not necessarily daily.

Are all Turbo 400 the same?

They are, for the most part, interchangeable on the same vehicles; however, you would normally find the TH400 in larger engine applications because they are able to function more reliably at higher engine rpms.

What transmission is best for racing?

For cars that weigh less than 3,200 pounds, launch violently, or are traction limited, the Powerglide is the best choice. In these types of applications, a Powerglide is the ultimate in consistency as well. On the other hand, for cars that will see any street time at all, a TH400 is a better option.

Can 700r4 handle 454?

Yeah a stock 454 won’t kill a stock 700r4 unless you’re planning on towing with it or hot rodding the 454 some day. Once you upgrade something though you’ll have a hard time with the weak parts like planetary, power band, output shaft. All of those should be upgraded if towing or building the engine are in your future.

How much HP will a stock Powerglide handle?

With all the available upgrades, both the Powerglide and the TH400 are capable of withstanding an incredible 3,500 horsepower.

How much does it cost to rebuild a TH400?

The “complete kits” are $300-$700 depending on the quality and components. Figure most “consumer” shops are going to put about $300-$400 materials, and about $200-$400 labor. “Performance” shops will likely add about $200-$500 on top of that, depending on level of work done.

How many gears does a 400 Turbo transmission 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.

Is a Turbo 400 the same length as a 700R4?

Registered. edit: okay, AA sez the 350 is 21.5″, 700r is 23.375″, 4l60e is 21.875″, and 400 is 24.25″.

Does a Turbo 400 have overdrive?

The Turbo 400 has earned the reputation of a tough, reliable transmission that can survive harsh duty, but is there a better alternative? Although not often considered as such, much like the Turbo 400, the 4L85E is a solid contender for use in heavy, high-horsepower vehicles, and has the added benefit of an overdrive.

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.

Will a Turbo 400 replace a 4L80E?

Very easy. So is just buying the aluminum circle pattern 4L80E pedestal which has the same transfer case bolt pattern. So, if you have a TH400 to NP205 mount, just a bit of work will make it bolt up to a 4L80E and all is well.

How much horsepower can a Turbo 400 transmission 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.