is 3400 lbs too heavy for a powerglide ? - Chevy Nova Forum
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Old 8th-January-2017, 07:44 PM   #1
speed_is_addicti
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is 3400 lbs too heavy for a powerglide ?

should i stick with a TH350 ?
powerglides are just so simple and easy to work on/rebuild.

But is my car too heavy for one, ive read you should only really use them on lighter cars.

My car is a 76 pontiac ventura hatchback.
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Old 8th-January-2017, 08:45 PM   #2
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I would say stay with the T350 unless you got a whole lot of horsepower and or a whole lot of gear.
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Old 8th-January-2017, 08:54 PM   #3
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Plenty of 3600+ cars running PG's. Strong and inexpensive to build/rebuild.

I like my TH350 but would swap it for a PG in a minute if I were looking at the rear gear change.

I think the only requirement would be to make sure you had the power to make it work well, personally I'd want 400+ hp.


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Old 8th-January-2017, 09:00 PM   #4
speed_is_addicti
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Plenty of 3600+ cars running PG's. Strong and inexpensive to build/rebuild.

I like my TH350 but would swap it for a PG in a minute if I were looking at the rear gear change.

I think the only requirement would be to make sure you had the power to make it work well, personally I'd want 400+ hp.


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I havent chose a rear gear yet so ive got that going for the decision.
i should be around 500 - 600 hp
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Old 8th-January-2017, 09:09 PM   #5
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Stick with the 3 speed. My car is 3180 lbs with 910hp and I still use a t-400. I have a transbrake and the converter to go with a race setup. It's gone 9.0's at 148 mph with a 1.24 60' time. I honestly wouldn't go powerglide unless you were throttle stop racing or under 3000 lbs or over 1000 hp with a small tire.
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Old 9th-January-2017, 09:05 AM   #6
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Our superstocker runs a powerglide and its usual weight is almost 3400lbs with a 560 HP engine. Never an issue. But if you're going to run a glide I would make sure its got a good aftermarket planetary gear set.
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Old 9th-January-2017, 09:49 AM   #7
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Our superstocker runs a powerglide and its usual weight is almost 3400lbs with a 560 HP engine. Never an issue. But if you're going to run a glide I would make sure its got a good aftermarket planetary gear set.
What gear do you run in it?
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Old 9th-January-2017, 10:30 AM   #8
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2.18 straight cut planetary and 6.14 gears.
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Old 9th-January-2017, 12:52 PM   #9
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I ran a 1:98 first gear glide ( stock case ) in my (probably 3900 lb,) all steel 55 chevy sedan del for years. Had a 4:30 gear and a 500 hp sbc. Went low 11's
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Old 9th-January-2017, 01:40 PM   #10
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2.18 straight cut planetary and 6.14 gears.
That is not a cheap setup.
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Old 9th-January-2017, 10:34 PM   #11
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Originally Posted by bracketchev70 View Post
That is not a cheap setup.
Its not but spend money on bulletproof parts and its cheaper in the long run.
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Old 10th-January-2017, 05:39 PM   #12
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Prob mph better, et pretty much the same, had a 3450lb car w/glide, prob not ideal but it worked. JW bell stk 1.76 gears,t-brake, input shaft. TSR has a book on hi po glides well worth it, good tips on setiing clutch clearances, all the mods for brake etc. That set up be very reliable to 800hp IMO. My current set up is ati case, ringless pump, BTE 1.80 straight cut, high count drums etc. Have over 4 g into it and i built it my self, parts just seem to snowball and it adds up quick. Are you running 1/8th mi? What size tire?
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Old 11th-January-2017, 01:05 PM   #13
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Got a friend with a high 9 sec. 2600 lb. car--it went quicker switching from a TH-350 to a Glide. Another friend with a low 10 sec. 3400 lb. wagon that slows down when he runs a Glide instead of his usual TH-350.
Leo will build you a Metric 200 that will go quicker, but it's about $4800
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Old 11th-January-2017, 08:40 PM   #14
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My car weighs about 3250 and with the glide it 60' around 1.7-1.9, I did a best of 1.47 normally did 1.50's with the T-350.
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