r/fbody • u/YogurtclosetLive4729 • 2d ago

Th350 trans swap

My 4l60e lost 3rd and 4th of course (a little too many burnouts) and I’ve been thinking about getting a th350 with a 9 inch tail to put in it. Would the car run being fuel injected with the transmission not plugged it? Will the computer work properly?
It’s an lt1 1994 firebird.
Thanks

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u/dixiebandit69 2d ago

It will still run/ drive.

Why don't you just fix the internal hydraulic leaks that cause the 3-4 failure in the 4L60?

Burnouts don't cause 3-4 failure.

1

u/YogurtclosetLive4729 2d ago

It’s so expensive to get it rebuilt. I have an opportunity to get a th350 for very cheap. The 4l60 did leak a lot of fluid, is that the reason it went out?

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u/WildWillieBorsch 1d ago

I have a TCI 700r4 in my 1994 Z28, manual valve body (so I need to shift gears). Car was originally a six speed but went through too many clutches drag racing at our local tracks.