View Poll Results: Built 4L60E vs. TH400?
Built 4L60E
197
44.37%
TH400
247
55.63%
Voters: 444. You may not vote on this poll
Built 4L60E vs. TH400?
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if you want an overdrive that is good with 750 rear wheel horsepower check this out and make sure you scroll down and read the article too .click the pics sorry didnt know how to put in the link you can click on so you will have to cut and paste it. http://www.ckperformance.com/gmaodpic.html
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Joined: Jun 2005
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if you want an overdrive proven at 750 rwhp check this out.i dont know how to install a clickable link so cut and paste it.make sure to scroll down and click the magazine pages to read the article. http://www.ckperformance.com/gmaodpic.html
im plan on going with a th400 also. ive been through 4 4l60e transmissions now so the 40 should handle anything i throw at it. i wont be driving it that much plus i use to drive mine around town in 3rd so i dont think not having OD will be a problem
11 Second Club
Joined: Feb 2003
Posts: 5,524
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From: The South
Turbo 400
Simply cannot trust a 4L60E.
Whenever my current 60E bites the dust I will be replacing it with a Turbo 400. Only hope this one lasts long enough that the Z is no longer my daily driver, and I can actually afford the new tranny without having to park it for awhile.
Simply cannot trust a 4L60E.
Whenever my current 60E bites the dust I will be replacing it with a Turbo 400. Only hope this one lasts long enough that the Z is no longer my daily driver, and I can actually afford the new tranny without having to park it for awhile.
I think the reason most people get caught up is that they want a sports car and a econobox at the same time. A Camaro is a sports car. Therefore go all out or get a 4 cylinder. With a v8 you are using more fuel all the time so just get a different car if you are concerned about fuel savings.
totally agree with above. Now i have another question... There will be no difference in top speed when swapping from 60-e to th400 correct? Or will there be? I dont mind no OD as i drive around in 3 all the time anyway. So does top speed change at all and do they make lock up converters for the th-400 just like a 60-e stall?
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Originally Posted by Superman09
totally agree with above. Now i have another question... There will be no difference in top speed when swapping from 60-e to th400 correct? Or will there be? I dont mind no OD as i drive around in 3 all the time anyway. So does top speed change at all and do they make lock up converters for the th-400 just like a 60-e stall?LS1 Tech Stories
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Verdad Gallardo ok, and top speed in our cars would be recorded in 3rd gear and not OD 4th correct?
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nothing like driving down the highway at 3500rpm at 60mph with people tailgating you to go faster , speed up now your cruising at 80mph turning 4300rpm . Say you want to drive 100miles in your car . that ***** a bear to deal with and gets old quick
drive for a week in Drive {4thgear in a t56} and thats what it will be like
+ 1 4l60e
drive for a week in Drive {4thgear in a t56} and thats what it will be like
+ 1 4l60e
Originally Posted by Superman09
ok, and top speed in our cars would be recorded in 3rd gear and not OD 4th correct?
Personally, if you can sit in these cars that long for the highway to be a concern then you are more a man than me. The seats are ok but by the time you get a couple 100 miles out your back starts to hurt!
Sorry to double post. I ran this through a calculator
Rev of 6000, 2.73 gear, 3rd gear, 27 inch tire -->176 mph
If I go to a 3.42 rear gear i can still go 140
My 2 cents is that you aren't going to be running hard long enough on the street to max out the car unless you got 4.11's and you would stil have to get it up to 113 mph.
Oh it would be worth the thrill!
Rev of 6000, 2.73 gear, 3rd gear, 27 inch tire -->176 mph
If I go to a 3.42 rear gear i can still go 140
My 2 cents is that you aren't going to be running hard long enough on the street to max out the car unless you got 4.11's and you would stil have to get it up to 113 mph.
Oh it would be worth the thrill!
11 Second Club
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Originally Posted by 2002_Z28_Six_Speed
I think the reason most people get caught up is that they want a sports car and a econobox at the same time. A Camaro is a sports car. Therefore go all out or get a 4 cylinder. With a v8 you are using more fuel all the time so just get a different car if you are concerned about fuel savings.
Wanting to not get horrendous gas mileage is not the same as wanting an "econobox". Even with modified muscle cars gas mileage for some people, especially those who use them as a daily driver, is still a concern.
Right now I get 11-12 mpg around town. That means I use almost $6 in gas going to and from class every day. If I had known how much gas would cost now and how much my modifications would hurt my gas mileage I would have modified my car differently. As it is I am hoping to hurry up and graduate so I can buy an econobox to drive daily, given our ridiculous gas prices.
Originally Posted by 2002_Z28_Six_Speed
Personally, if you can sit in these cars that long for the highway to be a concern then you are more a man than me. The seats are ok but by the time you get a couple 100 miles out your back starts to hurt!
). 16 hour drive hopefully less than that (13 ideal). One time I was driving for 19 hours!! (accident in Washington)now that was a pain 
Go through the ET time slip database. If you look through all the 10 second and faster cars, you'll notice (as far as automatics go) there are ALOT more TH400s and powerglides than anything else. That should speak volumes. Very few built 350s, very few built 4L60Es running 9s.
If I had a 11 sec or 12 second daily driver, I'd go w/ a built 4L60E. If I was wanting to go any faster, TH400 or glide and just forget about having overdrive.
If I had a 11 sec or 12 second daily driver, I'd go w/ a built 4L60E. If I was wanting to go any faster, TH400 or glide and just forget about having overdrive.
One other major advantage the the 4L60E has is that you can get a lock-up converter with one. Better dyno numbers and better gas mileage FWIW. I don't think you can get a lock-up f/ a 400. At least without costing an arm and two legs 
I chose the TH400 btw. It really doesn't weight that much. I picked it up with no problem (and I have a bad back). Felt like it weighed about 140 lbs.
I chose the TH400 btw. It really doesn't weight that much. I picked it up with no problem (and I have a bad back). Felt like it weighed about 140 lbs.
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Joined: Nov 2005
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Go with a built 4L60E. Personaly I would never run a TH400 unless it was a strip car or something I drove only a few times a month with no highway driving. If you are really worried about not having OD and wanting something reliable get a built 4L80E IMO. Though I seen no problems with a correctly built 4L60E.
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Joined: Nov 2001
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From: Holly Springs NC
Originally Posted by imslow
maybe not the only way to go... but you definately can't go wrong with the TH400. it will take whatever you throw at it, and the manual valve bodies, and trans brakes are so damn fun!!!
Can't wait, tired of rowin the gears, one broken clutch changed my mind as did driving my fiances T/A with a TH400.
Originally Posted by Richiec77
Consider a combo like a Gear Vendor and TH400. That's what I'm planning on doing. I need a TH400 to hold the power I'm making.
Ditto.......TH400 + Gear Vendor = Built 4L80E. I think they are about even, but I like how when I downshift my TH400, it doesn't buck the car. It is so much fun too. It can hold 1200+ HP, so no worry on braking it soon.
