Is it even worth rebuilding the 4l60?
Is it even worth rebuilding the 4l60? If my goal is to run mid to high 10's is it even worth rebuilding my 4l60? I currently run around 12.1 @ 115 with just headers and fast 90 and will be putting in a 238 duration cam and was going to try to get the car into the high 10's cam only by cutting the weight and adding some rear suspension.
I should clarify why I ask, I am putting the car back to stock for a smog so since its all apart I felt since I got some tax money I should either rebuild my 4l60 or go with a powerglide or th400. I want a 4l80 but I can't afford it and found some good prices on built th400's and powerglides with transbrakes already in them. Does anyone have some consensus on drivability in a trans without overdrive on a street driven car?
With 4.56 gears it will not be fun at hiway speeds. The 60e can live at those power levels but will cost some coin. I'm thinking 3-5k with new convertor included. I'm right at 10.1's and still running a 60e. If a track only car then turbo 350 or glide would be my choice 400's eat up too much power.
With 4.56 gears it will not be fun at hiway speeds. The 60e can live at those power levels but will cost some coin. I'm thinking 3-5k with new convertor included. I'm right at 10.1's and still running a 60e. If a track only car then turbo 350 or glide would be my choice 400's eat up too much power.
So the theory that a 400 eats more power is not necessarily true.
Ok I'll bite . Explain how? Maybe with new technology. It has been documented that they take more power to turn. They are heavier and once you reach single digits most people go to a glide, unless its a pig of a car or truck.
I know how to rebuild transmissions myself so it would be only parts. I have looked into what a lot of the companies performance transmissions consist of and I could buy all parts and have my current converter freshened up for about 1100 so that was why I was considering it. I just know if I have to go with a different trans I will have to buy a new converter, crossmember, and the parts to do a good rebuild myself or buy a ready to go one and either way spend close to 3k for a good setup and if I go a little higher I can get the 80e and still have overdrive.
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Turbopig I think for what your car is a 4l60e would be fine. Just make sure to put some good stuff in it and you will be fine. If you have any other questions let me know. Vince
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