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Re: 572 engine, PG or 727 trans?
[Re: AndyF]
#2977934
10/24/21 06:05 PM
10/24/21 06:05 PM
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Joined: Feb 2005
Posts: 20,156
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,156
PA.
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I’m going to say powerglide all the way BUT aftermarket case have been impossible to find. At least the ATI cases. I have three of them with gearsers ranging from 1.68-1.98 and we tried to order one for my son and they told me they probably wouldn’t have any this years. Jegs charged my card so I canceled the order. You may want to check to see what is available.
Last edited by pittsburghracer; 10/24/21 06:05 PM.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: 572 engine, PG or 727 trans?
[Re: AndyF]
#2977935
10/24/21 06:12 PM
10/24/21 06:12 PM
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Joined: Jan 2003
Posts: 2,915
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,915
A shed in England
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If it's light I'd go with a PG, if not I'd be leaning to a SFi case TH400 or something of that ilk. An SFi TH400 is something I've been considering for our car, re-certifying or replacing blankets/ shields etc is just a monumental PITA at the moment as no-one has stock. Also, I've no experience running a PG but I hear correct converter choice is paramount.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: 572 engine, PG or 727 trans?
[Re: AndyF]
#2977936
10/24/21 06:19 PM
10/24/21 06:19 PM
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Joined: Jan 2003
Posts: 16,923
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,923
NC
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I'm working with a race team who is putting a 572 inch wedge (Indy block and heads) into a B body race car. What kind of "B body race car?" Tube frame, back half, ladder bar, 4-link, weight ? Depending on weight and chassis., it could benefit from either one. But without more info, a 800 hp engine in a 3100 lb car with a good chassis would be a great bracket car with a PG and the right converter. A 750 hp engine in a 3400 lb car with a good chassis could work well with a 3-speed transmission.
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Re: 572 engine, PG or 727 trans?
[Re: AndyF]
#2977942
10/24/21 06:36 PM
10/24/21 06:36 PM
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Joined: Jan 2003
Posts: 9,985
Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,985
Frostbitefalls MN (Rocky&Bullw...
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I'm working with a race team who is putting a 572 inch wedge (Indy block and heads) into a B body race car. Trying to decide to go with a PG or stay with the 727. I'm leaning towards the PG since they have a couple of other cars with glides in them so they have PG spare parts. Also, the PG can be built with an aftermarket case which is SFI legal while the 727 requires a blanket or shield. I'm not sure which will be quicker down the track. They bracket race so they car about consistency more than ET. My guess is that the PG should work just fine behind the 572 and it might be a tad bit more consistent since it only has one gear change. I am a dyed in the wool fan of Torqflites', but in this case I would go glide if possible. A Torqueflite loses consistancy due to the first shift coming up real quick and too much starting line ratio. If they can't find a glide trans then I would run a rear gear like a 3.73 to reduce SLR to about 9.0 with the Torqueflite. I had to go to an airshifter on an RPM switch to get consistant times, and even with a well prepped track and 15x33 goodyears sometimes my 60 ft might vary by .01 or more.
Last edited by gregsdart; 10/24/21 06:38 PM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 572 engine, PG or 727 trans?
[Re: gregsdart]
#2977952
10/24/21 07:05 PM
10/24/21 07:05 PM
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Joined: Mar 2006
Posts: 9,824
MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,824
MI, usa
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My 572 runs a 727 with a 4.30 and 10.5 tires. It's done well in brackets and running index. This is the last time out. Couple of 60ft on the rear tire. First pass throttle pulled back. Last pass motor was wounded.
Doug
Last edited by dvw; 10/24/21 07:07 PM.
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Re: 572 engine, PG or 727 trans?
[Re: dvw]
#2977954
10/24/21 07:09 PM
10/24/21 07:09 PM
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Joined: Aug 2003
Posts: 43,116
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,116
Bend,OR USA
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My 572 runs a 727 with a 4.30 and 10.5 tires. It's done well in brackets and running index. This is the last time out. Couple of 60ft on the rear tire. First pass throttle pulled back. Last pass motor was wounded.
Doug I'm jealous  I wish we could get that many runs in one day out here in the west  Wait, maybe if I could go more than one round I could 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 572 engine, PG or 727 trans?
[Re: 440Jim]
#2977968
10/24/21 07:37 PM
10/24/21 07:37 PM
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Joined: Jan 2003
Posts: 30,994
Oregon
AndyF
OP
I Win
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OP
I Win
Joined: Jan 2003
Posts: 30,994
Oregon
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I'm working with a race team who is putting a 572 inch wedge (Indy block and heads) into a B body race car. What kind of "B body race car?" Tube frame, back half, ladder bar, 4-link, weight ? Depending on weight and chassis., it could benefit from either one. But without more info, a 800 hp engine in a 3100 lb car with a good chassis would be a great bracket car with a PG and the right converter. A 750 hp engine in a 3400 lb car with a good chassis could work well with a 3-speed transmission. It is a gasser type of car with ladder bars and big tires. The 572 should make around 900 hp but it hasn't been on the dyno yet. I'm not sure on the car weight, maybe 3300 with the new aluminum engine. I think the car has 3.89 gears in the rear right now but of course those can be changed. It currently runs 9.70 with an iron block 505 so they are looking to step up next season. The new 572 just arrived from Best so they are getting ready to swap engines over the winter.
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Re: 572 engine, PG or 727 trans?
[Re: Cab_Burge]
#2978184
10/25/21 12:27 PM
10/25/21 12:27 PM
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Joined: Jan 2003
Posts: 19,359
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,359
Las Vegas
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If its a bracket car then I would ALWAYS say a Glide, those who think weight matters to a glide need to buy a better glide. I personally have a Joels on Joy Proflite in my 3500+ lb Savoy and its been quite consistent as well but was not really built to bracket race so much. Ones less shift is one less opportunity for an issue.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: 572 engine, PG or 727 trans?
[Re: Al_Alguire]
#2978203
10/25/21 12:51 PM
10/25/21 12:51 PM
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Joined: Dec 2005
Posts: 11,524
Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,524
Fulton County, PA
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In that application,if they are serious, Glide.
Hate to say it but it"s like the old 9" vs. 8.75 or 60 debate. Glide has been developed and supported in the aftermarket so much more and offers so many advantages, it's a no brainer.
Converter development, options and availability, Cases. Parts. Gear ratios. Even the cost for a top shelf unit.
Buddy just put a 1.68 gear in an old 2400# ladder bar car with a 555. Made it much more manageable.
I love the Torqueflites, but if you're gonna race and not just play, you gotta use the right stuff. Watching The Million over the weekend. It's nasty out there.
Last edited by CMcAllister; 10/25/21 12:52 PM.
If the results don't match the theory, change the theory.
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Re: 572 engine, PG or 727 trans?
[Re: Al_Alguire]
#2978205
10/25/21 12:55 PM
10/25/21 12:55 PM
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Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
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I like the idea of the “all new” trans built with all the components designed for the rigors of drag racing.
So, budget allowing...... a TH400 or PG based combo would be my choice.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: 572 engine, PG or 727 trans?
[Re: AndyF]
#2978213
10/25/21 01:18 PM
10/25/21 01:18 PM
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Joined: Jan 2003
Posts: 16,923
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,923
NC
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I'm leaning towards the PG since they have a couple of other cars with glides in them so they have PG spare parts. Also, the PG can be built with an aftermarket case which is SFI legal while the 727 requires a blanket or shield. I'm not sure which will be quicker down the track. They bracket race so they car about consistency more than ET. My guess is that the PG should work just fine behind the 572 and it might be a tad bit more consistent since it only has one gear change. 900 hp, 572 CID will have plenty of torque to get that car moving with a PG. I highly recommend the aftermarket case (with bell). All the guts should be aftermarket at that level, so there is some choice of 1st gear ratio. Like a straight cut 1.80 gear set. And the Turbo style input shaft with matching converter.
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Re: 572 engine, PG or 727 trans?
[Re: 69dart]
#2978239
10/25/21 02:04 PM
10/25/21 02:04 PM
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Joined: Jan 2003
Posts: 482
Marysville Wa
moparfan
mopar
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mopar
Joined: Jan 2003
Posts: 482
Marysville Wa
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I started out with a 727 in the challenger i had years ago. The car was 2640 with me in it. I had issues getting the car to repeat, i put a 2.28 low gear in the 727 which helped some. i ended up putting a 1.80 glide in it, the car picked up a tenth and was a good bracket car after the switch. the car had a 572 (572-13 head) etc. car ran the best of 8.24 @ 165 with 1.15 60'
2017 Challenger R/T Scat Pack Shaker
2021 T/A 392
1970 Challenger R/T 383,727, 3.55, (Wife's car)
1970 Challenger R/T SE 440-4, 4-speed, 4.10 Dana
1972 Dodge Demon 396 W-2,904, 4.30, 10.660 @ 125.85
2020 Hellcat redeye
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Re: 572 engine, PG or 727 trans?
[Re: FastmOp]
#2978245
10/25/21 02:16 PM
10/25/21 02:16 PM
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Joined: Feb 2005
Posts: 20,156
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,156
PA.
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It’s about time you got here. Aren’t you retired like most of us old timers. Lol 😂
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: 572 engine, PG or 727 trans?
[Re: fast68plymouth]
#2978251
10/25/21 02:28 PM
10/25/21 02:28 PM
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Joined: Jan 2003
Posts: 30,994
Oregon
AndyF
OP
I Win
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OP
I Win
Joined: Jan 2003
Posts: 30,994
Oregon
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I like the idea of the “all new” trans built with all the components designed for the rigors of drag racing.
So, budget allowing...... a TH400 or PG based combo would be my choice. Yeah that is my thinking also. These guys have the budget for new parts and they like to tow every weekend to a race so it seems smart to use the good stuff rather than recycle old passenger car parts.
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Re: 572 engine, PG or 727 trans?
[Re: pittsburghracer]
#2978288
10/25/21 04:51 PM
10/25/21 04:51 PM
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Joined: Dec 2005
Posts: 11,524
Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,524
Fulton County, PA
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It’s about time you got here. Aren’t you retired like most of us old timers. Lol 😂 Must be comedy to supplement his retirement.
If the results don't match the theory, change the theory.
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Re: 572 engine, PG or 727 trans?
[Re: 440Jim]
#2978293
10/25/21 05:01 PM
10/25/21 05:01 PM
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Joined: Jan 2003
Posts: 30,994
Oregon
AndyF
OP
I Win
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OP
I Win
Joined: Jan 2003
Posts: 30,994
Oregon
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I'm leaning towards the PG since they have a couple of other cars with glides in them so they have PG spare parts. Also, the PG can be built with an aftermarket case which is SFI legal while the 727 requires a blanket or shield. I'm not sure which will be quicker down the track. They bracket race so they car about consistency more than ET. My guess is that the PG should work just fine behind the 572 and it might be a tad bit more consistent since it only has one gear change. 900 hp, 572 CID will have plenty of torque to get that car moving with a PG. I highly recommend the aftermarket case (with bell). All the guts should be aftermarket at that level, so there is some choice of 1st gear ratio. Like a straight cut 1.80 gear set. And the Turbo style input shaft with matching converter. I agree. I'm going to recommend that they get a quote from their transmission supplier for a PG. They'll have to make some changes to the car to fit a PG but nothing difficult for a race team. New driveshaft, shifter and crossmember should cover it. I'm assuming the Mopar starter will bolt right back in if the case was built correctly.
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Re: 572 engine, PG or 727 trans?
[Re: CROWBAR]
#2978366
10/25/21 08:32 PM
10/25/21 08:32 PM
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Joined: Jan 2003
Posts: 10,020
MN
JERICOGTX
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,020
MN
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Since breaking my 499, and working on building a 563, my Jerico would be a ticking time bomb. Starting from scratch, I wouldn’t even consider a 727. Either a TH400 or Glide. Why not start with an aftermarket case, and much better parts? Better options for gear sets. Options are endless. After weighing out all my options, I came to the best option available...
I ordered a Clutchless Liberty 4 Speed.
69 GTX
68 Road Runner
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Re: 572 engine, PG or 727 trans?
[Re: JERICOGTX]
#2978438
10/26/21 12:32 AM
10/26/21 12:32 AM
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Joined: Mar 2003
Posts: 9,099
Rogue River, OR
Jeremiah
master
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master
Joined: Mar 2003
Posts: 9,099
Rogue River, OR
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Since breaking my 499, and working on building a 563, my Jerico would be a ticking time bomb. Starting from scratch, I wouldn’t even consider a 727. Either a TH400 or Glide. Why not start with an aftermarket case, and much better parts? Better options for gear sets. Options are endless. After weighing out all my options, I came to the best option available...
I ordered a Clutchless Liberty 4 Speed. At least something is going in the right direction these days. That is great news and I am exited to see it! I have so many questions.
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Re: 572 engine, PG or 727 trans?
[Re: Jeremiah]
#2978472
10/26/21 07:27 AM
10/26/21 07:27 AM
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Joined: Jan 2003
Posts: 10,020
MN
JERICOGTX
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,020
MN
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Since breaking my 499, and working on building a 563, my Jerico would be a ticking time bomb. Starting from scratch, I wouldn’t even consider a 727. Either a TH400 or Glide. Why not start with an aftermarket case, and much better parts? Better options for gear sets. Options are endless. After weighing out all my options, I came to the best option available...
I ordered a Clutchless Liberty 4 Speed. At least something is going in the right direction these days. That is great news and I am exited to see it! I have so many questions. I'll post a new thread when it arrives. I was very close to pulling the trigger on a ATI TH400 for the car... Would not spend one dime on a stock case transmission at this power level.
69 GTX
68 Road Runner
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Re: 572 engine, PG or 727 trans?
[Re: Jeremiah]
#2978478
10/26/21 08:00 AM
10/26/21 08:00 AM
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Joined: Jan 2003
Posts: 4,039
Shelby Twp. Mi
HardcoreB
master
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master
Joined: Jan 2003
Posts: 4,039
Shelby Twp. Mi
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Since breaking my 499, and working on building a 563, my Jerico would be a ticking time bomb. Starting from scratch, I wouldn’t even consider a 727. Either a TH400 or Glide. Why not start with an aftermarket case, and much better parts? Better options for gear sets. Options are endless. After weighing out all my options, I came to the best option available...
I ordered a Clutchless Liberty 4 Speed. At least something is going in the right direction these days. That is great news and I am exited to see it! I have so many questions. Nice! lol
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Re: 572 engine, PG or 727 trans?
[Re: dvw]
#2978511
10/26/21 09:55 AM
10/26/21 09:55 AM
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Joined: Jan 2004
Posts: 4,563
Motor City
6PKRTSE
master
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master
Joined: Jan 2004
Posts: 4,563
Motor City
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I see lots of worries about the 727. Mine runs stock input and output shafts, stock input hub, 3 pin planets. Though I did go to a steel front planet after stripping 2 in aprox 725 passes. It does have aluminum drums and a home modified sun shell. Stranded me 3 times in 9 years. 2 of those were me being to cheap to invest in a steel front planet. The other was an aftermarket aluminum front clutch carrier failure. Who knows how many passes it had. I traded for it used. It was easily repaired and is still in service. Not that there isnt a time and place for a TH400 or a glide. But my 727 has certainly served me well. Doesn't kill clutches or band either. So basically it has a good front drum, Super sprag (though it never hurt the stock one), steel front planet. Like I stated it has some other used aluminum stuff. Front clutch carrier and a rear drum. But neither of those do I consider stronger than stock.
Doug Same here. Still running my ole 727 with plenty of street miles. Knock on wood so far so good. May try the billet 2nd gear launch valve body for my next upgrade. Anyone else with results of one of those valve bodies? Good or bad?
1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
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Re: 572 engine, PG or 727 trans?
[Re: Harry's Taxi 2]
#2978586
10/26/21 01:11 PM
10/26/21 01:11 PM
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Joined: Aug 2003
Posts: 43,116
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,116
Bend,OR USA
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The parts and cases, call them for more info please  The Proflyte is a all out drag racing tranny with multiple choices on the ratio and is suppose to be (I've never own one yet  ) very easy to maintain at the races and change gear ratios at the track also A good friend of mine ran one for years in a very fast PSCA 10.5 Outlaw car in SO CA , it wasn't a Mopar but it did end up with a Brad Andersen #8 billet blown Hemi motor in it 
Last edited by Cab_Burge; 10/26/21 01:14 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 572 engine, PG or 727 trans?
[Re: Cab_Burge]
#2978621
10/26/21 03:18 PM
10/26/21 03:18 PM
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Joined: Jan 2003
Posts: 10,020
MN
JERICOGTX
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,020
MN
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The parts and cases, call them for more info please The Proflyte is a all out drag racing tranny with multiple choices on the ratio and is suppose to be (I've never own one yet ) very easy to maintain at the races and change gear ratios at the track also A good friend of mine ran one for years in a very fast PSCA 10.5 Outlaw car in SO CA , it wasn't a Mopar but it did end up with a Brad Andersen #8 billet blown Hemi motor in it Is the Proflyte a SFI case? Or is it a remachined 727 case?
69 GTX
68 Road Runner
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Re: 572 engine, PG or 727 trans?
[Re: JERICOGTX]
#2978625
10/26/21 03:26 PM
10/26/21 03:26 PM
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Joined: Aug 2005
Posts: 4,101
Yes
sixpakdodge
master
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master
Joined: Aug 2005
Posts: 4,101
Yes
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The parts and cases, call them for more info please The Proflyte is a all out drag racing tranny with multiple choices on the ratio and is suppose to be (I've never own one yet ) very easy to maintain at the races and change gear ratios at the track also A good friend of mine ran one for years in a very fast PSCA 10.5 Outlaw car in SO CA , it wasn't a Mopar but it did end up with a Brad Andersen #8 billet blown Hemi motor in it Is the Proflyte a SFI case? Or is it a remachined 727 case? 727 case. No one makes an SFI Torqueflite case at this time. Most Proflites are 727 cases with 904 internals amongst other rollerized components. Nothing different as far as regular 727 maintenance other than it probably has to be done more often. As far as the whole multiple ratio thing...A&A has a whole gamut of ratios available in their catalog. Being easy to change ratios at the track....no easier than a standard 727. ProTrans, A&A, Joel's on Joy, and A-1 amongst others all build their own version of a Proflite.
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Re: 572 engine, PG or 727 trans?
[Re: sixpakdodge]
#2978626
10/26/21 03:34 PM
10/26/21 03:34 PM
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Joined: Jan 2003
Posts: 10,020
MN
JERICOGTX
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,020
MN
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The parts and cases, call them for more info please The Proflyte is a all out drag racing tranny with multiple choices on the ratio and is suppose to be (I've never own one yet ) very easy to maintain at the races and change gear ratios at the track also A good friend of mine ran one for years in a very fast PSCA 10.5 Outlaw car in SO CA , it wasn't a Mopar but it did end up with a Brad Andersen #8 billet blown Hemi motor in it Is the Proflyte a SFI case? Or is it a remachined 727 case? 727 case. No one makes an SFI Torqueflite case at this time. Most Proflites are 727 cases with 904 internals amongst other rollerized components. Nothing different as far as regular 727 maintenance other than it probably has to be done more often. As far as the whole multiple ratio thing...A&A has a whole gamut of ratios available in their catalog. Being easy to change ratios at the track....no easier than a standard 727. ProTrans, A&A, Joel's on Joy, and A-1 amongst others all build their own version of a Proflite. I can understand using something like that when it comes to Class racing, and a 727 case is required, but in a Bracket car, I see no reason it's a better option? How much does a trans like that cost? Seems like no one wants to say...
69 GTX
68 Road Runner
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Re: 572 engine, PG or 727 trans?
[Re: JERICOGTX]
#2978726
10/26/21 08:32 PM
10/26/21 08:32 PM
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Joined: Dec 2004
Posts: 10,552
Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,552
Rittman Ohio
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The parts and cases, call them for more info please The Proflyte is a all out drag racing tranny with multiple choices on the ratio and is suppose to be (I've never own one yet ) very easy to maintain at the races and change gear ratios at the track also A good friend of mine ran one for years in a very fast PSCA 10.5 Outlaw car in SO CA , it wasn't a Mopar but it did end up with a Brad Andersen #8 billet blown Hemi motor in it Is the Proflyte a SFI case? Or is it a remachined 727 case? 727 case. No one makes an SFI Torqueflite case at this time. Most Proflites are 727 cases with 904 internals amongst other rollerized components. Nothing different as far as regular 727 maintenance other than it probably has to be done more often. As far as the whole multiple ratio thing...A&A has a whole gamut of ratios available in their catalog. Being easy to change ratios at the track....no easier than a standard 727. ProTrans, A&A, Joel's on Joy, and A-1 amongst others all build their own version of a Proflite. I can understand using something like that when it comes to Class racing, and a 727 case is required, but in a Bracket car, I see no reason it's a better option? How much does a trans like that cost? Seems like no one wants to say... Probably after the converter and shield it's up there with an Equalizer only less durable  Gus 
64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
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Re: 572 engine, PG or 727 trans?
[Re: fourgearsavoy]
#2978743
10/26/21 09:10 PM
10/26/21 09:10 PM
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Joined: Aug 2003
Posts: 43,116
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,116
Bend,OR USA
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Those guys I'm talking about made a 2900 Lb. car run 6.17 at 234.+ MPH on a 10.5x33x16 tire with one of those trannies. They had switch from a Mikes Monster Glide to the Proflyte when they were running a Ford motor in it with a lot of NOS, they later switch to twin torbos and them to crank driven Pro Charger on c16 and Q16. BobR was involved with that deal for a long time and he finally convince the car owner to switch to a Hemi I'm almost sure they don't use any stock parts in that tranny including the case, call them and find out 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 572 engine, PG or 727 trans?
[Re: Cab_Burge]
#2978747
10/26/21 09:18 PM
10/26/21 09:18 PM
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Joined: Jan 2003
Posts: 19,359
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,359
Las Vegas
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I am around three ProFlites (two from A1 one from Joels,) and all of them are stock case, its the only option. FWIW they are used in cars with over 1000hp and so far knock on wood no issues. As for adapting them to other applications there are a few ways. I like the A1 adapter best myself. There was a truck pull guy working on an aftermarket case but it was HUGE and heavy not sure if it ever came to fruition.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: 572 engine, PG or 727 trans?
[Re: JERICOGTX]
#2978786
10/27/21 07:06 AM
10/27/21 07:06 AM
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Joined: Aug 2005
Posts: 4,101
Yes
sixpakdodge
master
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master
Joined: Aug 2005
Posts: 4,101
Yes
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I can understand using something like that when it comes to Class racing, and a 727 case is required, but in a Bracket car, I see no reason it's a better option? How much does a trans like that cost? Seems like no one wants to say...
I've been told by Super Stock guys to budget $6-8k for a Proflite. Used ones seem to go for $3500-5k. At the same time, I was also privy to a conversation where a Mopar S/S racer claimed to have $30k in switching over from a 727 to a Liberty. As far as the SFI case, I never heard anything more about it either. I believe the truck puller who was doing them was from Missouri or thereabout? I'm not sure if any were ever cast, but there were CAD drawings for them. It was definitely investigated.
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Re: 572 engine, PG or 727 trans?
[Re: sixpakdodge]
#2978790
10/27/21 07:17 AM
10/27/21 07:17 AM
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Joined: Jan 2003
Posts: 10,020
MN
JERICOGTX
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,020
MN
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=sixpakdodge At the same time, I was also privy to a conversation where a Mopar S/S racer claimed to have $30k in switching over from a 727 to a Liberty.
I can guarantee it doesn't cost 30K to install a Liberty in a car. Weighing out my options, and a well built TH400 was $3500 more then a Liberty, after adding every single thing up.
Last edited by JERICOGTX; 10/27/21 07:19 AM.
69 GTX
68 Road Runner
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Re: 572 engine, PG or 727 trans?
[Re: JERICOGTX]
#2978810
10/27/21 09:23 AM
10/27/21 09:23 AM
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Joined: Jan 2003
Posts: 995
Boynton Beach, Fl
Rapid588
super stock
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super stock
Joined: Jan 2003
Posts: 995
Boynton Beach, Fl
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I saw a post on F.book a while back from the truck puller guys that were going to have SFI cases for the torqueflites built, said it was DOA due to the company they were going to get the cases from had been contacting many transmission companies also trying to get someone to bite, so they dropped it.
A Lot of us would love to get an SFI case, I have a lot of good parts that would really like a stronger case around them .... we have a few cars with up to 1400 hp behind them, with no real breakage,
but yes... there needs to be a stronger SFI case made.
93 Dodge Stealth - Supercharged 526ci Hemi
93 Dodge Daytona Top Sportsman injected 588 Hemi - plus a lil NOS
67 Hemi GTX (may the 4speed with you!)
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Re: 572 engine, PG or 727 trans?
[Re: Rapid588]
#2978818
10/27/21 09:50 AM
10/27/21 09:50 AM
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Joined: Jan 2003
Posts: 10,020
MN
JERICOGTX
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,020
MN
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A Lot of us would love to get an SFI case, I have a lot of good parts that would really like a stronger case around them .... we have a few cars with up to 1400 hp behind them, with no real breakage,
but yes... there needs to be a stronger SFI case made.
This is where going to PRI makes a difference. I talked with a manufacturer of SFI trans cases, and asked if they had any plans to build a SFI case 727. They told me I was the first one to ask about it. People can talk about them all they want, but face to face time with the companies that actually make stuff is where it's at. That question needs to be asked over and over.
69 GTX
68 Road Runner
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Re: 572 engine, PG or 727 trans?
[Re: R3 Racing]
#2979023
10/27/21 08:16 PM
10/27/21 08:16 PM
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Joined: Jan 2003
Posts: 20,165
Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,165
Park Forest, IL
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I seem to recall that the case guy was in contact with Keith Long. Part of the reason it fell apart was the guy couldn't find a foundry in the US that would work with the small volume this guy wanted.
"Everybody funny, now you funny too."
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Re: 572 engine, PG or 727 trans?
[Re: slantzilla]
#2979148
10/28/21 08:20 AM
10/28/21 08:20 AM
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Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
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Go powerglide and don't look back. 
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: 572 engine, PG or 727 trans?
[Re: Rapid588]
#2979174
10/28/21 09:31 AM
10/28/21 09:31 AM
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Joined: Jan 2003
Posts: 9,985
Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,985
Frostbitefalls MN (Rocky&Bullw...
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I saw a post on F.book a while back from the truck puller guys that were going to have SFI cases for the torqueflites built, said it was DOA due to the company they were going to get the cases from had been contacting many transmission companies also trying to get someone to bite, so they dropped it.
A Lot of us would love to get an SFI case, I have a lot of good parts that would really like a stronger case around them .... we have a few cars with up to 1400 hp behind them, with no real breakage,
but yes... there needs to be a stronger SFI case made.
Would a 727 case from a diesel application be a possibility? Guys have been running some serious torque through these I believe, and torque is what breaks things.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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