
10-15-2007, 08:25 AM
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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
The stroke didn't have any thing to do with this--the cam was timed wrong or the crank key sheared and the cam retarded. The piston is chasing the exhaust valve as it closes and there was inadequate clearance probably at around 10-15 degrees before tdc
Jerry
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