1960's 727 trans verses 1980's 727 trans

66 CUDA said

I still need a 727 SB trans for this 1968 Barracuda with a 340 engine, there is a guy near me with a 727 SB trans that was pulled off a 360 motor from a 1984 2 wheel drive truck. Will this trans bolt up and work for what I need, I know I will have to go through the trans before it is installed but just want to know if there is a difference in model year trans's.
Thanks
Bob

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I would get both if I were you.
In 1971 they introduced part throttle kickdown to the torque flights so it would kick down nicely at mid throttle at a cruise speed , kinda handy in traffic... so therefore a 1960s version wouldn't be that great unless you change the valve body to newer 71 n up style. hence both transmissions.Also it may have a numerically higher kickdown lever say a 4.2 or 3.8 which it be pretty good compared to a 2. something. The thing is is those later torque flights are also lock up Style and you might not want that ...or you might , better mileage...but less torque convertor choices.
If you can just buy a valve body then the early one will be fine but I would still get her later one for the parts.
I hope all that helps you in making your choice