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Clutch Recommedation??

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Old Aug 19, 2014 | 11:27 AM
  #1  
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Default Clutch Recommedation??

Hi all,

putting a 454 with 550HP in my C3 convert...and was gonna upgrade the clutch to the heavy Duty...any recommendations?

My vette supplier carries SACHS for 427 HD (heavy duty) comes in a kit with new pressure plate...and I get a discount!

what did you guys do for clutch?
opinions?

Thanks,
Ron
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Old Aug 19, 2014 | 11:45 AM
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Start another thread on it tomorrow ?
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Old Aug 19, 2014 | 11:45 AM
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I've gone thru different clutches and my preference is McLeod. .02
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Old Aug 19, 2014 | 01:17 PM
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McCloud twin disk
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Old Aug 20, 2014 | 04:40 PM
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Sounds like cost matters to you. I think Gkull has ran a sachs in a 650 hp SBC for a long time now without problems and he road races his car. May want to give him a shout out.
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Old Aug 21, 2014 | 12:30 AM
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Regardless of what you pick, it's worthwhile to have your machine shop (if so equipped) balance both your flywheel and pressure plate. You'll find most are out by as much as 20-60 grams. Even with the correct shouldered bolts there's some slop that can 'move' pressure plate enough to cause some vibration. Your machinist (if competent) will mark your flywheel and PP to be installed to your crank at the 12 o'clock position which will ensure the PP will hang exactly in the position it was balanced in. You'll have to turn your engine by hand to make sure the "7th" hole on the crank flange allows for the 12 o'clock phasing.

Time and money well spent. Good luck!
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Old Aug 21, 2014 | 12:36 AM
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McLeod.
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Old Aug 21, 2014 | 03:02 AM
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Any new package....However, L-88`s only use a 10,4 or some call it a 10 1/2 and a lightweight 13 lb flywheel...all available at a Chevy dealer

The standard kits are 11 inch which is probably what you have sold at all parts stores and where you will get the best deal with the exception of the special L-88 parts
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Old Aug 21, 2014 | 05:26 AM
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Centerforce Dual Friction

Beat on one for over 10 years with a 550hp 454 and NEVER had any issues.
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Old Aug 21, 2014 | 12:14 PM
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Thanks all!

Great info!
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Old Aug 21, 2014 | 12:47 PM
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Originally Posted by Mako72
McLeod.
I installed a McLeod Super Street on my '73, have yet to drive it though.
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Old Aug 22, 2014 | 09:24 AM
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chinaski!

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Old Aug 24, 2014 | 06:06 PM
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Originally Posted by Factor
Hi all,

putting a 454 with 550HP in my C3 convert...and was gonna upgrade the clutch to the heavy Duty...any recommendations?

My vette supplier carries SACHS for 427 HD (heavy duty) comes in a kit with new pressure plate...and I get a discount!

what did you guys do for clutch?
opinions?

Thanks,
Ron
I have a Centerforce dual friction in mine. The McLeod twin disc would be good choice if you want a better clutch and afford the extra dollars.
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Old Aug 25, 2014 | 09:52 AM
  #14  
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Thanks!

anyone have any feedback on pedal stiffness in sachs vs mcleod?
this is where I am at...

i do alot of cruising...and need input here...

thanks!
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