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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.
Is a TH350 the same as a Turbo 350?
The TH350, also known as THM350, Turbo Hydramatic 350, or Turbo 350, is a three-speed, automatic shift transmission developed by Chevy and Buick and introduced in 1969. It was typically coupled with Small Block V6 and V8 engines and was used in most of General Motors rear-wheel-drive cars and trucks until 1984.
Are all 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.
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.
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.
How much power can a Turbo 350 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.
What was the last year for the Turbo 350 transmission?
The “Turbo 350”, as it is commonly referred to, was used in GMC and Chevrolet pickups until 1986, when it was replaced by the TH700R4, which is a four speed overdrive transmission.
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.
How long is a 350 Turbo transmission dipstick?
Turbo 350 Automatic Transmission Dip Stick, 26.5 Inch Length.
How much longer is Turbo 350 than Turbo 400?
Measure the transmission. The overall length of the TH-400 is 38 inches, while the overall length of the TH-350 is 33 5/8 inches, if both use the longest tail shafts available. The TH-400’s body is 25 inches and the TH-350’s body is 21 5/8 inches long.
Will a Turbo 350 replace a Powerglide?
They physically swap, same size. I suggest counting the teeth on both flywheels to see if they are the same. You’ll need to use a torque convertor for a Turbo 350. Enjoy the new spunk from the swap!May 7, 2011.
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.
Is a Turbo 350 a 3 speed?
The TH350 transmission is a three-speed automatic transmission launched by General Motors in vehicles from 1968. Cars that used the TH350 transmission include those from the late 1960s, as well as some GM all rear-wheel-drive vehicles launched in 1984.
How tall is a Turbo 350 transmission?
GM Turbo 350 and 400 Transmission Measurements 21 5/8 in. 20 3/8 in. 3 3/4 in.
Is a Turbo 350 a 4 speed?
The TH350 is an automatic shift, three-speed transmission. It is widely considered to be one of the greatest of automatic transmissions ever built.
How does a TH350 transmission work?
TH350 transmissions use a cable-operated downshift or “detent” valve located in the valve body. This valve provides forced downshifts with heavy- or full-throttle application for improved vehicle acceleration. The transmission still upshifts on the governor when the downshift valve is applied.
How do I identify a Chevy 350 transmission?
The 350 transmission is easily identified visually, by counting the pan bolts and by locating transmission number. This number contains the year of manufacture, but does not identify the transmission as a THM350.
How can I make my TH350 stronger?
Christensen also suggests that if youre having a TH350 rebuilt, consider adding high-performance clutches and reducing drag or friction (allowing the transmission to pass more power onto the rear wheels and increasing durability) by installing Torrington needle bearings on the front planetary pinion carrier and rear Jan 1, 1997.
How much HP can a 350 handle?
a typical 350 Chevy can make upwards of 350 – 375 HP before you exceed the reliability of the components. For a big block with the same stock components it can make in the area of about 400 to 475 or so HP and handle upwards of about 500 HP before you exceed the reliability of the stock cast pistons.
What is a shift kit 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.
How long is a Chevy 350 dipstick?
BLACK Steel, OE-Style, Chevrolet TH350 (Turbo 350) Transmission Fluid Dipstick With BLACK Steel Tube; 27″ Long Dipstick.
