turbo with TH400
you can add 2.75 first gear in the 400, will help with street gears in the rear, but their limited to around 800 flywheel hp, and costs around $600 for the gears
you can build a 4l80e on a budget, if you use a manuel v/b, (unless you have a computer now)and build the trans yourself, for about the same money as a 400
you can build a 4l80e on a budget, if you use a manuel v/b, (unless you have a computer now)and build the trans yourself, for about the same money as a 400
I've got to agree with Zombie. The TH400 is completely streetable. I've been running one in my car for a few years now, and have had great luck with it. Some of it may also have to do with what valve body you use, as mine can be a little cantankerous at times in traffic, but its nothing major. This is even with a loose converter and a healthy rear gear to keep my cam happy. Plenty of highway cruising.
If its going to be a 408 car why even go with a th400........
Go with a Rossler built Powerglide.
Takes less power turn and less of a HP loss.
BMR's crossbrace works for a perfect mount.
With a big cubed turbo car your not going to see a big difference because of the TQ the motor will make.
Opt for a 1.80 1st gear vice the 1.76....
Another plus is one shift......
With a turbo the fall off between gear isnt hard on the setup at all... 1.80 1st and 1:1 2nd
The reason i know the above is because i did it........ drives real nice on the street.
3.54 rear gear and a 28" tall radial.
I would spin 2700 rpm's at 62mph.... not bad at all compared to when the car was a 4L60E car with 3.73's it would be 2500 @ 70 MPH....
Cars came from the factory for years with powerglides......
Any high HP car i ever build in the future will have one
I ran a Chance convertor also and Zombie..... if Chance was gunna sell you a bolt togeather for $1600 id of bought 3-4 of them at that price because the Bolt togeathers retail for $3K each.
His weld togeathers are $1600.......
Kyle
Go with a Rossler built Powerglide.
Takes less power turn and less of a HP loss.
BMR's crossbrace works for a perfect mount.
With a big cubed turbo car your not going to see a big difference because of the TQ the motor will make.
Opt for a 1.80 1st gear vice the 1.76....
Another plus is one shift......
With a turbo the fall off between gear isnt hard on the setup at all... 1.80 1st and 1:1 2nd
The reason i know the above is because i did it........ drives real nice on the street.
3.54 rear gear and a 28" tall radial.
I would spin 2700 rpm's at 62mph.... not bad at all compared to when the car was a 4L60E car with 3.73's it would be 2500 @ 70 MPH....
Cars came from the factory for years with powerglides......
Any high HP car i ever build in the future will have one
I ran a Chance convertor also and Zombie..... if Chance was gunna sell you a bolt togeather for $1600 id of bought 3-4 of them at that price because the Bolt togeathers retail for $3K each.
His weld togeathers are $1600.......
Kyle
If its going to be a 408 car why even go with a th400........
Go with a Rossler built Powerglide.
Takes less power turn and less of a HP loss.
BMR's crossbrace works for a perfect mount.
With a big cubed turbo car your not going to see a big difference because of the TQ the motor will make.
Opt for a 1.80 1st gear vice the 1.76....
Another plus is one shift......
With a turbo the fall off between gear isnt hard on the setup at all... 1.80 1st and 1:1 2nd
The reason i know the above is because i did it........ drives real nice on the street.
3.54 rear gear and a 28" tall radial.
I would spin 2700 rpm's at 62mph.... not bad at all compared to when the car was a 4L60E car with 3.73's it would be 2500 @ 70 MPH....
Cars came from the factory for years with powerglides......
Any high HP car i ever build in the future will have one
I ran a Chance convertor also and Zombie..... if Chance was gunna sell you a bolt togeather for $1600 id of bought 3-4 of them at that price because the Bolt togeathers retail for $3K each.
His weld togeathers are $1600.......
Kyle
Go with a Rossler built Powerglide.
Takes less power turn and less of a HP loss.
BMR's crossbrace works for a perfect mount.
With a big cubed turbo car your not going to see a big difference because of the TQ the motor will make.
Opt for a 1.80 1st gear vice the 1.76....
Another plus is one shift......
With a turbo the fall off between gear isnt hard on the setup at all... 1.80 1st and 1:1 2nd
The reason i know the above is because i did it........ drives real nice on the street.
3.54 rear gear and a 28" tall radial.
I would spin 2700 rpm's at 62mph.... not bad at all compared to when the car was a 4L60E car with 3.73's it would be 2500 @ 70 MPH....
Cars came from the factory for years with powerglides......
Any high HP car i ever build in the future will have one
I ran a Chance convertor also and Zombie..... if Chance was gunna sell you a bolt togeather for $1600 id of bought 3-4 of them at that price because the Bolt togeathers retail for $3K each.
His weld togeathers are $1600.......
Kyle
Registered User
Joined: Dec 2008
Posts: 3
Likes: 0
From: Texas
LISTEN go with PERFORMABUILT http://performabuilt.com/Converters052008.html
they are a sponsor and ls1tech is good about haing reliable sponsorscheck out there site you will be impressed with the detail and price O'yea they also sell converters to
they are a sponsor and ls1tech is good about haing reliable sponsorscheck out there site you will be impressed with the detail and price O'yea they also sell converters to
