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-   -   powerglide vrs turbo 400... sbc 355 (http://www.hotrodders.com/forum/powerglide-vrs-turbo-400-sbc-355-a-9420.html)

Dave Y. 11-07-2002 11:52 PM

powerglide vrs turbo 400... sbc 355
 
Any suggestions for a street full steel 55 chevy with sbc355, ford 9" with a 4:56 gear. Got a super t10 now, but considering an automatic change. What would be a better street choice turbo 400 or powerglide? THANKS DY

slider in wa 11-08-2002 03:23 AM

With 4:56 your not talking about a daily driver huh? So the question is what do you want the car to do? Be drivable or, way cool whole shots? If this is a street racer, and will continue as such, either tranny will do the job.The power glide if built right is a great 1/4 mile tranny, however i think the 400 is better for all around driving. Just my two cents worth this morning. Let us know what you decide to go to.
Slider in Wa.
Never for get the Vet!!!

Dave Y. 11-08-2002 03:40 AM

Hey Slider, Yea this is NOT a daily driver. Its going to be basically a weekend fun car. Iv had many opinions about tranys, iv got a super t-10 now. But as you well know, an automatic now days will make any stick-shift driver look bad. Before doing any mods, just kinda thinking of going with an automatic. Im from the old school, back when 4 speeds where the ONLY way to go. THANKS for you imput. I just dont know much about the pro and cons about differnt automatics and converters. DY

Deuce 11-08-2002 04:00 AM

[quote]Originally posted by Dave Y.:
<strong>Any suggestions for a street full steel 55 chevy with sbc355, ford 9" with a 4:56 gear. Got a super t10 now, but considering an automatic change. What would be a better street choice turbo 400 or powerglide? THANKS DY</strong><hr></blockquote>


Powerglide 1st gear = 1.76
Turbo 400 1st gear = 2.48

The Turbo 400 will leave harder than the glide, has two more gears and are almost impossible to kill as long as you keep the fluid level checked.

The down side is that a 400 Turbo takes a few more HP to turn than a PowerGlide. You will lose a few HP at the output shaft comparared to a PG. The better low gear and FUN FACTOR of the 400 makes the few HP loss not a concern in my book.

I have a Turbo 400 in my black 32 Roadster and it is great. If your $$$ will stand it, a 700R should be considered. First gear is 3.06 with 3 more gears. 4th gear is about 30 % overdrive and will cut the 4.56 down to around 3.25 (I don't have my calulater handy). More $$$ but more FUN.
I am building a 40 Ford coupe with a 350 SBC
and I am using a 700R in it.


:eek: :eek:

DeathByGreaser 11-08-2002 02:40 PM

while on this topic,because I'm considering the 700r trans. I have a 383 stroker engine and wanted to go put a 700r to replace my th350 trans, but the guy who's helping me said that my trans would out weigh my engine and hold the car down, so basically he said to leave the th350. Anyone have any idea on this?

Deuce 11-08-2002 03:34 PM

[quote]Originally posted by Black167chevelle:
<strong>while on this topic,because I'm considering the 700r trans. I have a 383 stroker engine and wanted to go put a 700r to replace my th350 trans, but the guy who's helping me said that my trans would out weigh my engine and hold the car down, so basically he said to leave the th350. Anyone have any idea on this?</strong><hr></blockquote>

You need to find better HELP. I believe he does not know how to change it over. Go here for good info

<a href="http://www.tciauto.com/tci.htm" target="_blank">http://www.tciauto.com/tci.htm</a>

:eek: :eek:


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