Will a TH400 replace a TH350?

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.

What transmission can replace a TH350?

By far the most popular conversion is swapping out an original two-speed Powerglide (PG) for a three-speed TH350. The TH350 is a bolt-in replacement for a PG, making this swap a relatively straightforward one that requires no crossmember or driveshaft modifications.

Will a 400 transmission fit a 350?

You might be able to swap that B-O-P T-400 for a Chevy T-350. The T-350 is lighter and will offer less internal drag, so the swap would benefit you. A PowerGlide loses about 18 horsepower to parasitic drag, a T-350 comes in at about 38 horsepower and a T-400 requires about 45 horsepower.

What’s the difference between a 350 and a 400 Chevy transmission?

Is there a big difference between a Turbo 350 and Turbo 400 – and which one do I want? 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.

Are TH350 and TH400 same length?

You didn’t do a swap from a long TH350 to a short Th400, More likely a short TH350 (6″ tailhousing), to a short TH400 (4″ tail). In that case the Th400 is about 1/2″ longer.

How much HP 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.

How much HP can 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.

Is a TH350 the same as a Turbo 350?

The TH350 is an automatic shift, three-speed transmission. The Turbo 350 is the shortest and one of the strongest automatics that can be put into a Jeep.

Does a Turbo 400 have overdrive?

The TH400 was launched by General Motors in 1964, as a replacement to the ST300 2-speed automatic transmission. It was used in a wide range of vehicles, hence, it was not just exclusive to GM cars. Around the same time when the TH400’s name was changed, an overdrive version called the 4L80-E was launched.

What is the best transmission for a Chevy 350?

TH350. Best transmission choice, hands down. The Turbo Hydra-matic 350 was first used in 1969 model cars. It was developed jointly by Buick and Chevrolet to replace the two-speed Super Turbine 300 and aluminum case Powerglide transmissions.

Is the TH400 a good transmission?

The TH400 is an automatic shift, three-speed, longitudinally positioned transmission. It is widely regarded to be a supremely durable and legendary transmission.

What is the length of a TH350 transmission?

Chapter 2: Transmissions: Transmission Lengths

What’s the difference between TH-350 and TH-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.

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.

What’s the difference between a 350 and a 400?

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. Locate the vacuum modulator.

Can a TH350 be converted to column shift?

Conversion linkage kits for column-shift cars to fit a TH350 into any car with an automatic on the column can also be purchased through aftermarket suppliers. Some crossmembers, particularly on X-body GM cars, may have to be modified for clearance on the front lip area of the crossmember.