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Message: [QUOTE="bjmunderwater, post: 697142, member: 9055"] Ok ive been following this for a bit now and have had a few ideas. The whole reasons for installation of head studs , increased clamping force to resist the increased cyclinder pressures correct? But what is failing first is it the bolts that are stretching and there for decreasing their ability to hold pressure or is it the gasket material failing. But anyway common practice install studs that have increased torque value and puts lets say 70% yeild on the stud = very strong and tight seal but have been cracking block in the same known location, now is the increase in torque value even nessary? Besides from the manufacturers of the stud . Is the stock torque enough to hold the increased pressures if the bolt didnt stretch ? Could one just upgrade the headbolts to a theoretical stronger bolt less prone to streaching like grade6 to grade 10 sotra of thing and use the stock torque value putting less stress on the block? [/QUOTE]

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