It's my understanding that a bolt only 'pulls' in one direction whereas a stud is effectively 'pulling' in both directions via the threads on each end. This effect is what makes the stud a better choice than a bolt - in high performance applications where it's needed.
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1991 5.0 LX Coupe - 40,750 miles
331 cu. in. / Tremec 3550 / BFG Drag Radials
12.22 @ 114.31 mph - w/1.89 60'
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