How many gears does a Turbo 350 transmission have?

This is an automatic transmission that is longitudinally mounted, making it applicable for rear-wheel drive cars. This transmission is a 3 speed, and no overdrive gear was available. The gear ratios used for this transmission were 2.52 for 1st gear, 1.52 for 2nd gear, and 1.0 for 3rd gear.

How many gears does a TH350 have?

The TH350 is an automatic shift, three-speed transmission. It is widely considered to be one of the greatest of automatic transmissions ever built.

Is a Turbo 350 a 3 speed?

The TH350 transmission is a three-speed automatic transmission launched by General Motors in vehicles from 1968.

Are Turbo 350 transmissions good?

A turbo 350 transmission is the perfect transmission for your entry-level sports car, light truck, or rally race. High performance and tough parts give this transmission the ability to handle a variety of use cases.

Are all Turbo 350 transmissions the same?

Externally, all the TH350 transmissions look the same; however, internally there are some differences. Depending on the engine size of the car the transmission was removed from, it can have anywhere from 10 to 18 friction discs and 10 to 18 steel clutch plates inside. … You will find the TH350 with 6-, 9- and 12-in.

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What speed is a Turbo 350 transmission?

The Turbo 350 transmission, commonly known as the TH350, was a 3 speed automatic transmission that began phasing out the GM Powerglide in 1969. The TH350 then lasted 15 years before eventually being replaced by the 700R4.

Does Turbo 350 transmission have overdrive?

Overdrive. The 700R4 has an overdrive while the TH350 does not. Overdrives allow for high-speed cruising, which saves fuel while lowering torque.

How do you tell a Turbo 350 from a 400?

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. The TH-400 pan also has two circular indentations on the humped side of the pan. Measure the transmission.

How much horsepower can a TH350 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 does a shift kit do for a TH350?

At least half a dozen shift kits are on the market for the TH350 transmission. They all share similar components and are designed to improve shift performance by increasing line pressure, volume of fluid to the clutch packs, and timing of the shifts for less overlap and shorter/ firmer shifts.

What vehicles have a Turbo 350 transmission?

The Turbo 350 Transmission found excellent use in Pontiac Firebirds, GMC trucks, Chevrolet Camaros, Monte Carlo, and the Caprice. This transmission remarkably matches GM automobiles with small-block V-8s as well as the small Iron Duke 4-cylinder models, the block-block 396 V-8s, and V-6s.

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How do I know if I have a Turbo 350 transmission?

Look for the vacuum modulator. It will be on the side of the transmission and have a rubber vacuum line attached to it. If this fitting is on the right front of the transmission, you have a TH350. On the similar TH400 it is attached at the right rear of the transmission.

Which is better Turbo 350 or Turbo 400?

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. That doesn’t mean the Turbo 350 is weak in comparison.

What transmissions will bolt up to a Chevy 350?

The 350 has had TH200 , TH350, TH400 , 4L60 and more than likely the 4L80 automatics behind it. My truck with the Chevrolet 350 engine utlizes the TH400 . There would have been a variety of manual gear boxes behind the 350 as well.