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8 inch Torque Converters #2651203
05/02/19 12:36 PM
05/02/19 12:36 PM
Joined: Dec 2012
Posts: 1,823
Wind Gap,Pa.
S
Sammy Offline OP
top fuel
Sammy  Offline OP
top fuel
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Joined: Dec 2012
Posts: 1,823
Wind Gap,Pa.
Why do all these Converter Companies not want to sell you a 8 inch?
Everyone wants to sell you either a 9 or 9.5.
Need a new converter and everyone try's to talk me out of one.

Re: 8 inch Torque Converters [Re: Sammy] #2651207
05/02/19 12:43 PM
05/02/19 12:43 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Whats the use going to be for.. car and weight.. is it a street car
wave

Re: 8 inch Torque Converters [Re: Sammy] #2651208
05/02/19 12:47 PM
05/02/19 12:47 PM
Joined: Feb 2005
Posts: 20,116
PA.
pittsburghracer Offline
"Little"John
pittsburghracer  Offline
"Little"John

Joined: Feb 2005
Posts: 20,116
PA.
Transmission Specialties has never tried taking me out of a 8 inch convertor. My last 3 have been spragless and I’ve been very happy with them. Ever without dyno numbers on my last convertor I told them I wanted 5800 stall and it ended up being 5760. Can’t beat that.


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




Re: 8 inch Torque Converters [Re: Sammy] #2651223
05/02/19 01:23 PM
05/02/19 01:23 PM
Joined: Jan 2003
Posts: 14,478
So. Burlington, Vt.
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fast68plymouth Offline
I Live Here
fast68plymouth  Offline
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Posts: 14,478
So. Burlington, Vt.
What one needs for a torque converter is def one of those “it depends” things.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: 8 inch Torque Converters [Re: MR_P_BODY] #2651226
05/02/19 01:28 PM
05/02/19 01:28 PM
Joined: Dec 2005
Posts: 11,408
Fulton County, PA
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CMcAllister Offline
Mr. Helpful
CMcAllister  Offline
Mr. Helpful
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Joined: Dec 2005
Posts: 11,408
Fulton County, PA
Originally Posted by MR_P_BODY
Whats the use going to be for.. car and weight.. is it a street car
wave


It is application specific. Stall speed desired, power, stroke, gear, weight, intended use. With everything being big inch, big power, boosted, etc, these days, not many situations are right for that small converter.


If the results don't match the theory, change the theory.
Re: 8 inch Torque Converters [Re: Sammy] #2651331
05/02/19 07:36 PM
05/02/19 07:36 PM
Joined: Feb 2011
Posts: 1,454
Glendora Ca.
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Just-a-dart Offline
pro stock
Just-a-dart  Offline
pro stock
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Posts: 1,454
Glendora Ca.
I have been told good 8" cores are hard to find, and most new 8" converters are usings parts from ATI.
9.5 stuff is cheap for them to buy so easier to sell cheaper/or make more money.

I am buying another 8" right now

Last edited by Just-a-dart; 05/02/19 07:39 PM.


"Just a Bracket car dressed up like a streetcar"
Re: 8 inch Torque Converters [Re: Sammy] #2651334
05/02/19 07:40 PM
05/02/19 07:40 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
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Joined: Aug 2003
Posts: 43,007
Bend,OR USA
Originally most race converter company used the Opel 8 inch cores and built them for the tranny, engine and so on.
I've been told the 8 inch cores are no longer out there and not many company have any in stock to build them now confused
I've ran into the same thing in the last three years several times whiney shruggy
There is a HP limit on how well any small converter will work, the bigger the core the more power it will take before failing is what I'm being told once you get over 900 HP shruggy
For real high RPM stall, above 8500 RPM, A1 says their 7 inch is the hot set up work shruggy


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 8 inch Torque Converters [Re: Sammy] #2651372
05/02/19 09:32 PM
05/02/19 09:32 PM
Joined: May 2003
Posts: 13,182
aZLiViN
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J_BODY Offline
I Live Here
J_BODY  Offline
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Joined: May 2003
Posts: 13,182
aZLiViN
All 3 of mine are 8”.... that’s what Lenny spec’ed for my small block

Re: 8 inch Torque Converters [Re: J_BODY] #2651393
05/02/19 10:39 PM
05/02/19 10:39 PM
Joined: Jan 2003
Posts: 20,149
Park Forest, IL
slantzilla Offline
Too Many Posts
slantzilla  Offline
Too Many Posts

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Posts: 20,149
Park Forest, IL
I've got 2 8's that I got from Stock Eliminator guys. One is a PTC, the other is a TCI. Pretty sure PTC will build you one. I know Edge will, and they are using billet covers now.


"Everybody funny, now you funny too."
Re: 8 inch Torque Converters [Re: slantzilla] #2651422
05/02/19 11:53 PM
05/02/19 11:53 PM
Joined: Jan 2008
Posts: 2,363
Cotati, CA
Dave Hall Offline
top fuel
Dave Hall  Offline
top fuel

Joined: Jan 2008
Posts: 2,363
Cotati, CA
I have an 8" in a 727 in a street car. It works but it's pretty stupid. Fun though! I'm willing to sell it. Kevin at Hughes went through it. I originally got it from Marv at A-1.

Re: 8 inch Torque Converters [Re: Dave Hall] #2651438
05/03/19 02:25 AM
05/03/19 02:25 AM
Joined: Jan 2003
Posts: 6,130
Melbourne , Australia
LA360 Offline
master
LA360  Offline
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Joined: Jan 2003
Posts: 6,130
Melbourne , Australia
As has been mentioned, the 9-9.5" cores are plentiful and that's why they'll push you toward them.


Alan Jones
Re: 8 inch Torque Converters [Re: LA360] #2651463
05/03/19 07:55 AM
05/03/19 07:55 AM
Joined: May 2016
Posts: 112
Mopar
Jason B Offline
member
Jason B  Offline
member

Joined: May 2016
Posts: 112
Mopar
Well I just so happen to have 3 ATI 8” for sale LOL pick your poison.

2- Glide 8” convertors with Turbo inputs one is 67-6800 the other 7000.


1- 904 8” Transbrake convertor 7100-7200 stall

All of them are basically brand new with less than 15- 1/8 mile passes.

Asking for 800.00 plus shipping each.

Jason Buckner 936-577-1648 call or text


1968 Cuda 440" Edelbrock Victor Head Small Block.
[img]https://board.moparts.org/ubbthreads/upload4/23859.png[/img]
Re: 8 inch Torque Converters [Re: Jason B] #2651486
05/03/19 09:37 AM
05/03/19 09:37 AM
Joined: Dec 2007
Posts: 12,587
Great Neck,LI,new york
hemi-itis Offline
I Live Here
hemi-itis  Offline
I Live Here

Joined: Dec 2007
Posts: 12,587
Great Neck,LI,new york
I have an 8 inch and I blew right throught it,,,,,is it junk now???


HEMI-ITIS has no cure.
My condition is fully BLOWN!!
Re: 8 inch Torque Converters [Re: hemi-itis] #2651526
05/03/19 11:15 AM
05/03/19 11:15 AM
Joined: Jan 2003
Posts: 8,005
Tulsa OK
Bad340fish Offline
master
Bad340fish  Offline
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Joined: Jan 2003
Posts: 8,005
Tulsa OK
I run an 8" on the street, it flashes 6400 behind my 416 and it drives well on the street. It is a turbo action that is rated at 4800.


68 Barracuda Formula S 340
87 "Chrysler" Conquest
Re: 8 inch Torque Converters [Re: Bad340fish] #2651534
05/03/19 11:27 AM
05/03/19 11:27 AM
Joined: Mar 2006
Posts: 9,791
MI, usa
dvw Offline
master
dvw  Offline
master

Joined: Mar 2006
Posts: 9,791
MI, usa
All depends on torque input and desired stall speed. With my combo the 9 1/2 Ultimate will flash to 6100. That's all my combo needs. If you have less input torque or need more stall then the 8" or even smaller would be appropriate.
Doug

Re: 8 inch Torque Converters [Re: hemi-itis] #2651647
05/03/19 05:26 PM
05/03/19 05:26 PM
Joined: May 2016
Posts: 112
Mopar
Jason B Offline
member
Jason B  Offline
member

Joined: May 2016
Posts: 112
Mopar
Depends on who built it and if they will stand behind it. They should be able to fix it and upgrade where needed. Only question will be is if it’s cost effective as opposed to buying new that’s already beefed up.

Jason


1968 Cuda 440" Edelbrock Victor Head Small Block.
[img]https://board.moparts.org/ubbthreads/upload4/23859.png[/img]
Re: 8 inch Torque Converters [Re: hemi-itis] #2653639
05/09/19 10:29 AM
05/09/19 10:29 AM
Joined: Dec 2007
Posts: 12,587
Great Neck,LI,new york
hemi-itis Offline
I Live Here
hemi-itis  Offline
I Live Here

Joined: Dec 2007
Posts: 12,587
Great Neck,LI,new york
Originally Posted by hemi-itis
I have an 8 inch and I blew right throught it,,,,,is it junk now???

Can anyone tell me the answer to this one?? I took out an 8 inch and tried a used converter.That is when realized I was blowing through the 8".Is that converter now damaged???


HEMI-ITIS has no cure.
My condition is fully BLOWN!!
Re: 8 inch Torque Converters [Re: hemi-itis] #2653640
05/09/19 10:32 AM
05/09/19 10:32 AM
Joined: Apr 2003
Posts: 3,496
Tulsa, Oklahoma
340Cuda Offline
master
340Cuda  Offline
master

Joined: Apr 2003
Posts: 3,496
Tulsa, Oklahoma
Originally Posted by hemi-itis
Originally Posted by hemi-itis
I have an 8 inch and I blew right throught it,,,,,is it junk now???

Can anyone tell me the answer to this one?? I took out an 8 inch and tried a used converter.That is when realized I was blowing through the 8".Is that converter now damaged???
Well if it worked at one time and now does not, it may need repair. If it never worked it may just be too loose and could be tightened up. I think only a good torque converter manufacture could tell you for sure.

Re: 8 inch Torque Converters [Re: 340Cuda] #2653667
05/09/19 11:29 AM
05/09/19 11:29 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
I have a 8" conv that I blew through and I.m still using it.. let it cool
down and it should be fine.. I went to 9600 rpm on mine and it normally
stalls at 5600 rpm.. I dont use a rpm chip for the stall which is how I
leave the line all the time
wave

Re: 8 inch Torque Converters [Re: hemi-itis] #2653673
05/09/19 11:40 AM
05/09/19 11:40 AM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,007
Bend,OR USA
Originally Posted by hemi-itis
Originally Posted by hemi-itis
I have an 8 inch and I blew right throught it,,,,,is it junk now???

Can anyone tell me the answer to this one?? I took out an 8 inch and tried a used converter.That is when realized I was blowing through the 8".Is that converter now damaged???

If it drives okay at light throttle and isn't making noise or metal it is probably okay work twocents


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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