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Slant 6 10" Performance Clutch Install 3-16-12
https://slantsix.org/forum/viewtopic.php?t=48219		 Page 7 of 14
Author:  LeMonRacer [ Thu May 31, 2018 6:23 am ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
72 Polara,

Can you confirm that the 360131M pressure plate has the same bolt pattern as the B&B PP ?

I just noticed that there is a crack in the mounting flange of the pressure plate I took out of the Signet race car.
Summit shows 3 weeks to ship your PP, for $200. That’s a lot easier to swallow than a $600 flywheel for the ford unit.

The other pressure plate I have for the car is a 10” truck unit with too many springs, it makes the firewall flex, a lot.

Jason
Trying to get the car together for Lou’s race and back on the road course at CMP in September
225 ‘64 Valiant 4 speed
Author:  Exner Geek [ Thu May 31, 2018 7:02 am ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
72 Polara, if the flywheel has both the 9" Long and 9 1/4" B&B bolt patterns, it looks like the B&B pattern is the one that is used with the diaphragm pressure plate. Those studs look like 3/8", does that mean that the holes were larger than the normal 5/16" also? What I am getting at is could the McLeod pressure plate and disc be used with a regular 9 1/4" B&B drilled flywheel? Perhaps with enlarging the mounting holes. Do those studs just screw in with a shoulder or do they have other special features? I ask this as heavy duty pressure plates that fit the 9 1/4" B&B bolt pattern are getting hard to find.
Author:  DonPal [ Thu May 31, 2018 9:57 am ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
Quote:
What I am getting at is could the McLeod pressure plate and disc be used with a regular 9 1/4" B&B drilled flywheel? Perhaps with enlarging the mounting holes. Do those studs just screw in with a shoulder or do they have other special features?


I'd like the answer to that also. On my last install I had to drill the flywheel to install a Ford Ranger diaphragm clutch but would like to use the existing B&B drilled flywheel on my daughter's dart with a decent McLeod PP & disc.
Author:  Rick Covalt [ Thu May 31, 2018 2:17 pm ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
If Quick Time would have just made their Bell housing for the Slant 6 to use the small block 10 1/2" flywheel with a high starter location they would have sold many many more than they have. And then we would all have had easy access to the 10 1/2" clutches from every manufacturer and plenty of flywheel options as well. But it didn't happen.
Author:  DusterIdiot [ Thu May 31, 2018 5:03 pm ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
Quote:
If Quick Time would have just made their Bell housing for the Slant 6 to use the small block 10 1/2" flywheel with a high starter location they would have sold many many more than they have. And then we would all have had easy access to the 10 1/2" clutches from every manufacturer and plenty of flywheel options as well. But it didn't happen.
x2. That would have given a clutch for the salad stirring that would actually hold against a 200+Hp slant on a hard launch and at high revs... I know the Ford
enthusiast at my last place of employment said the ranger clutch is great behind a lo-po engine, don't expect it to live long behind anything that might perform
like a 2 barrel 302...
Author:  Mike Andreas [ Mon Jun 03, 2019 6:01 am ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
I'm following this thread as well. I have a billet Flywheel with the ford pattern. Once I have time to get it out of the car I'll take some measurements. It may be exactly what you describe above. It came from the build that Steve Magnante did for hotrod magazine "SlantSickness" article. Somewhere I have a copy of his notes. I'll see if I can find them too.
Author:  GregCon [ Mon Jun 03, 2019 6:51 am ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
I'm sure the diaphragm pressure plate works well in this application....but at least in the olden days they were considered a downgrade from the three finger (Borg&Beck*) design Mopar used. I seem to recall it was due to the tendency of diaphragm design to stay 'depressed' at high RPM. Meaning you would hit 7000RPM, push in the clutch to shift, and when you let the pedal back out...the clutch would stay disengaged.



*A lot of people don't know this, but after developing the pressure plate with famous guitarist Jeff Beck, Borg went on to become and equally famous tennis player.
Author:  Greg Ondayko [ Mon Jun 03, 2019 7:48 am ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
Greg, that can be easily solved by taking out the over center spring under the dash.

It's not a problem and you get a better Pressure Plate that in my opinion that doesn't blow up on 6000 RPM shifts.

Greg
Author:  GregCon [ Thu Jun 27, 2019 6:57 am ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
" Quick Time would have just made their Bell housing for the Slant 6 to use the small block 10 1/2" flywheel with a high starter location they would have sold many many more than they have. And then we would all have had easy access to the 10 1/2" clutches from every manufacturer and plenty of flywheel options as well. But it didn't happen."

Rick, can you help me understand this statement? What flywheel did QT design for? A 10"? I looked on their site and it seems to say 11" clutch?
Author:  Rick Covalt [ Thu Jun 27, 2019 9:08 am ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
The way I understand is they made the belhousing to fit the standard Slant 6 flywheel. Since there are no good clutch and PP for that small flywheel it doesn't serve a very good purpose in my opinion. It is nice, but if you plan to race and really need a blow proof, then you need a clutch to go with it.

If it would have been made to standard small block size there are many clutches out there.
Author:  afastcuda1970 [ Thu Jun 27, 2019 11:39 am ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
Find a bellhousing from an 80's slant six w150 with a np 435 trans and the re-drill a v8 flywheel to the slant crank pattern the you can use any mopar 10 1/2in clutch.
Author:  Rick Covalt [ Thu Jun 27, 2019 1:36 pm ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
That may work for some vehicles but likely will not fit in an early A body. Plus it is not a blow proof. Protecting our feet and legs is the issue when racing.
Author:  GregCon [ Thu Jun 27, 2019 3:26 pm ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
Thanks Rick. I confirmed with Quick Time that it's made for the Slant Six 122 tooth flywheel.

I assume you can't fit a 10.5" clutch on the 122 tooth flywheel even if you redrill the pressure plate pattern?

I wonder if you could cut and weld a QT bell...so as to move the starter to the necessary location? My guess is the QT bellhousing is large enough to hold a 10.5" clutch...they probably have a standard formed bell they use for various cars and didn't make a smaller one just for the Slant. Maybe I'll buy one and start chopping.....
Author:  Rick Covalt [ Thu Jun 27, 2019 4:17 pm ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
At almost $800 I wont be chopping one up. I :D :D have a small block blow proof that I got for $150. I have an aluminum adapter plate and will probably move my starter up to the normal slant spot on this one. Good luck! :D :D
Quote:
I assume you can't fit a 10.5" clutch on the 122 tooth flywheel even if you redrill the pressure plate pattern?
That is correct. Barely enough room for a 10" clutch on one.
Author:  GregCon [ Thu Jun 27, 2019 6:28 pm ]
Post subject:  Re: Slant 6 10" Performance Clutch Install 3-16-12
I kinda like how the QT bell is already set up for a hydraulic clutch. Not sure just how different that is, but it might be a good starting point.
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