04-09-2007, 10:56 PM
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CC Member
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Join Date: Nov 2003
Location: Encinitas,
CA
Cobra Make, Engine: BDR 187 Prism Red w/Silver stripes; 427 stroker by Smeding Performance, Tremec TKO600 gearbox
Posts: 131
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Not Ranked
New head bolts were used and torqued to the builder's specs (with a torque wrench). I used moly lube on the threads and tightened them in three stages: 85 ft-lb, 95 ft-lb, and then 105 ft-lb. I tightened them in a pattern from the center to the ends.
I don't know how long the problem has been going on, but probably for a few hundred miles. It has gotten pretty hot (220-230 deg. F) on a couple of occasions when I didn't realize the coolant was low. I'm thinking those occasions were after the gasket started leaking and probably just made it worse, but I can't be sure.
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