How do transmisson names work????

[Dilsterboy]

So i dont know if im using the lemans page as a good section of the forum to ask this, but im always curious on names of transmisson names with numbers in them. Like Turbo 350, Turbo 400. Torqueflite 717 i think its is... But what does the 350 represent on the transmisson of 350 in its name? Is it a certin size of part or what engine it can be mated with?

 

[melsg5]

I have never run across an explanation of names. It could be as simple as the design of a certain transmission was project 350, 400, etc. within the engineering department.

 

[Zimgxp]

The 350 is the standard duty transmission.The 400 is a heavier duty version. The torque flight 727 is a mopar tranny

 

[Dilsterboy]

So how will i know what type of tranny to use for the right car i want to build. For cruising on low rpms. Or straight line racing on quick rpm's? I want to be more knowledgeable about muscle car transmissons. Is there a source that can tell me more about them other then wikipedia.... ThAnks

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[melsg5]

If you want a combination of both, low cruising RPM and acceleration, for a GM product, and an automatic transmission, you go with the 700R4. If you want to buy books on the topic try amazon.com or your local library.

 

[Zimgxp]

Depending on how heavy the car is, a 200R4 would work also. The 700 has a lower first gear, and is used in heavier cars. Both can be built to handle high hp.