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Old 12-11-2013, 02:33 PM
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A98Coupe A98Coupe is offline
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Join Date: Feb 2008
Location: Cleveland, UK
Cobra Make, Engine: #535 Kirkham 427, 427 Side Oiler
Posts: 157
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Thanks Brent & Rick for your advice, but I think I need to explain the full story here to explain my predicament and ask your opinion one more time before I go wasting more money on alternative clutch parts.

My engine builder originally spec'd a McLeod Super Street Pro clutch assembly Part No. 75235 (500 series disk - ceramic FW side - organic PP side, 12" diaphragm PP, 1-3/8" x 10 input spline). I questioned this clutch for my engine because McLeod's website said it was good for up to 500hp. My engine builder went back to his contact at McLeod and came up with the following:

600 series ceramic disk (FW side & PP side), Sprung centre, Part. no 260663 (12" dia. big input)
Long style PP Part No. 360650 (2000 lb clamp load)

The guy at McLeod said this set up would give better release characteristics at high rpm.

The question now is if you think the 600 series disk is going to give me chatter problems, then if I buy a 500 series disk, will my long style PP have enough clamp load to prevent slipping? The equivalent diaphrapm PP Part No. 360821 has 2250 lbs clamp load. I can't help thinking I should have stuck with the original Super Stock Pro clutch?
What do you think?
Thanks
Stuart
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