04-27-2011, 12:31 PM
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CC Member
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Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
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Not Ranked
I have had two clutch failures---in both of them the bolts were knocked out of the holes where they threaded into the block--
The bell housings stayed together and contained the parts because they were bolted securely together all around the top and bottom of the can and the motor plate with bolts between each of the factory block mounting holes.
One of my pro stock racing friends had a failure and the only piece that escaped was a piece of the starter ring gear that came out the starter opening.
Many of the QT housings don't have provisions for the extra bolts between the block bolts or the circle of bolts around the bottom. There are many QT choices and I feel that the customers are buying the lower price units which don't have the extra fasteners.
Get the SFI specs and read what the differences are between ratings---nowhere does ground clearance enter the specs however some allowance is made into how the units can be trimmed/braced.
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Threaded Mode
