From the year 2000 and below all Chevy transmission bolt patterens are the same.
It does not matter if it is a V6, small block V8, Big block V8 they are all the same.
The only thing that is different is the fly-wheel.
YES.
yes
yes
The turbo 400 transmition is widely used, it just depends on what motor it was originally bolted to.
yes you can bolt this trans to a 400 smallblock b ut you need to make sure that you put an attachment on your throttle linkage for the T.V. cable or the trans wont shift out of first gear
yes
Yes, if they were built with the standard Chevy bolt pattern.
Yes but it will need a vacuume source and check the flywheel, I think a 400 is over kill for a 4.3 the 400 is a strong trans and the 4.3 is a weak motor.
You can if it has the Chevy bolt pattern.
Yes.
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Chevy or GMC They have the Duramax motor and Allison transmission which have almost 400 horse power.