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How Much Does It Cost to Rebuild a Th350?

FAQs Jackson Bowman August 5, 2022

How much does it cost to rebuild a 350?

The most common cost to overhaul a 350 Chevy engine is around $2,000. However, that price can go up into the $3000-$4000 range depending on what parts you want to replace. In addition, costs can be significantly lower if only a few parts need to be replaced.

How much HP can a built TH350 handle?

The Stage 1 TH350 is designed for up to 450 hp. Those looking for something more powerful can check out the Stage 2 version (PN PA35102), which packs 550 horsepower and retails for $1,500 with a real street price of $1,175 from most retailers. Both gearboxes come standard with a one year warranty.

What year did they stop making TH350?

This model was only produced for five years from 1979 to 1984. The converter used electronic converters to make the transmission and vehicle more fuel efficient when moving at highway speeds. If you see a plug on the left, you have a 350-C on your hands.

Is a TH350 a good transmission?

The TH350 is a three-speed automatic transmission. It is widely regarded as one of the finest automatic transmissions ever built.

Is it cheaper to rebuild or replace an engine?

A conversion for repair is usually cheaper than buying a new motor. An overhaul can save you up to half the cost of a new engine. However, sometimes rebuilding is not a good option. In cases where the rebuild costs the same as a new engine, your mechanic should state these costs up front.

Is it worth rebuilding an engine?

Often remanufactured engines are even superior to new car engines because better parts are used or design changes to parts fix problems with the original engine. Remanufactured engines are dependable, reliable and backed by the engine manufacturer’s warranty program.

Which transmission is better TH350 or TH400?

The Turbo 350 (above) and Turbo 400 (below) are the quintessential GM automatic transmissions. Both have three gears, but the Turbo 400 is physically larger and designed more for the torque capacity of big-block engines.

Are all TH350 transmissions the same?

Outwardly, all TH350 transmissions look the same; internally, however, there are some differences. Depending on the engine size of the car the gearbox was removed from, it can contain between 10 and 18 friction discs and 10 and 18 steel clutch discs.

What is the gear ratio of a TH350?

The TH350 is a 3-speed transmission with a higher gear ratio in 1st gear (2.52:1) and a provisional 2nd gear that offers improved initial dynamics for drag racing and the allows daily driving. GM developed and promoted the three-speed automatic transmission to replace the standard Powerglide two-speed transmission.

Does a TH350 have overdrive?

But the three-speed TH350 and TH400 versions (and their two-speed Powerglide cousin) fall short when it comes to highway cruising. The reason for this is the conspicuous missing overdrive gear.

What cars did the TH350 come in?

The Turbo 350 transmission found excellent use in Pontiac Firebirds, GMC trucks, Chevrolet Camaros, Monte Carlo and the Caprice. This transmission is a great match for GM vehicles with small-block V-8 engines as well as the small Iron Duke 4-cylinder models, the block-block 396 V-8 engines and V-6 engines.

How do you rebuild a TH350 transmission?

What does TH350 mean?

The TH350 transmission is a three-speed automatic transmission introduced by General Motors in vehicles from 1968 onwards. It can also be said that this model was born as a collaboration between Chevrolet and Buick, where the gearbox was made to be compact, strong and versatile.

Will a Turbo 350 replace a 700R4?

Sorry, but a 700R4 is a direct replacement for a Turbo 350. As mentioned above, if your converter is the right one, you’ll need some sort of module to enable the lock. You will also need a carburetor that will accept the later model TV cable as it is different from the T-350 kickdown cable.

References:

  1. https://vehq.com/how-much-does-it-cost-to-rebuild-a-350-chevy-engine/
  2. https://www.motortrend.com/how-to/sucp-1302-as-real-as-it-gets-th350/
  3. https://www.transmissionrepaircostguide.com/th350/
  4. https://www.novak-adapt.com/knowledge/transmissions/automatic/th350/
  5. https://specializedtruckandauto.com/is-engine-rebuild-worth-it-lets-discuss/
  6. https://www.christensenautomotive.com/benefits-of-a-rebuilt-engine/
  7. https://www.motortrend.com/how-to/1507-twelve-common-questions-and-misconceptions-about-automatic-transmissions/
  8. https://www.hemmings.com/stories/article/th350-transmission-swap
  9. https://angf35eis.com/th350-vs-th400-vs-4l60e-vs-700r4/
  10. https://www.motortrend.com/how-to/1407-how-to-install-a-bolt-on-overdrive-1967-chevrolet-camaro/
  11. https://gearstar.com/gm-turbo-350-performance-transmission/
  12. https://www.youtube.com/watch?v=RouMeKztz4s
  13. https://gearstar.com/th350-transmission-identification-decoding-super-tuning/
  14. https://www.vanning.com/threads/ubbthreads.php/topics/453742/switching-out-350-turbo-for-700r4.html

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