Th400 or Poweglide ?
#1
Junior Member
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Thread Starter
Join Date: Aug 2007
Posts: 9
Th400 or Poweglide ?
I've been going round for round on this decision as my research so far has not convinced me to lean in either direction. Are there any experienced builders or racers out there that can offer some first hand knowledge about this topic? Most comparisons I see ask about car weight and HP/Torque. This is a pro-street car that is driven short distances on occassion for car cruises, etc (approx. 300mi/yr). Here is the relavant information about my car.
68 Firebird
3300 lbs w/driver
474 stroker Pontiac
742 crank HP & 672 ftlb torque
Th350 trans w/4500 stall
3.73 rear gear
28" x 10" slick
Currently runs 9.90s at 136mph....1.42 @ 60'
Thanks,
Bob
68 Firebird
3300 lbs w/driver
474 stroker Pontiac
742 crank HP & 672 ftlb torque
Th350 trans w/4500 stall
3.73 rear gear
28" x 10" slick
Currently runs 9.90s at 136mph....1.42 @ 60'
Thanks,
Bob
#2
Senior Member
DYNO OPERATOR
Join Date: Oct 2004
Location: florence ky
Posts: 498
That's good for a driver for sure what is your reason for wanting to change your trans .
for me if i was going to drive it on the street and wanted to make it stronger i would go with the turbo 400 and for racing the glide is not going to help you really because of the weight of the car.
The reason i say that is because i did that a few years ago went from a turbo 400 to a glide and didn't help as far as ET goes it was in a nova at 3500 lbs the 60 foot slowed down and the ET also the only real advantage for me was going to air or electric shift the shifters are cheaper .
So it all depends on what you are trying to accomplish.
for me if i was going to drive it on the street and wanted to make it stronger i would go with the turbo 400 and for racing the glide is not going to help you really because of the weight of the car.
The reason i say that is because i did that a few years ago went from a turbo 400 to a glide and didn't help as far as ET goes it was in a nova at 3500 lbs the 60 foot slowed down and the ET also the only real advantage for me was going to air or electric shift the shifters are cheaper .
So it all depends on what you are trying to accomplish.
#10
Junior Member
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Thread Starter
Join Date: Aug 2007
Posts: 9
Forgot to mention I want to change the Th350 because I intend to start using Nitrous, which will put me at about 1000HP total (more than I want to trust my TH350 to handle), and I would like to install a trans-brake.
Thanks
Thanks