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Message: [QUOTE="SINNER, post: 255692, member: 100"] Lots of misinformation in this thread. The clamping force of a fastener has 0 to do with the torque it is tightened to, thread pitch, or even the lube used. It is directly related to the material and at what point in it's preload it reaches it's elasticity. That simple fact is why I laugh when I hear people saying "I took it 50ft. lbs past it's spec so it will clamp down harder". No , you took it past it's elastic range and ruined the fastener. The inherent design of an engine that uses TTY fasteners is a cost saving measure that exploits the higher clamping loads associated with a PROPERLY DESIGNED torque-to-yeild bolt/stud. At the designed power levels of the engine it is a good design. When you try to triple or even quadruple the power output of the engine the shortcomings of the design shows itself. Bottom line is there is no magic cure all for a lack of head bolts at elevated levels. At elevated power levels the material used in the head itself deflects from the extreme spacing between the studs. I had even looked into having a billet rocker box made to increase the rigidity of the head but the costs were insane. I went through 2 sets of A1 studs and 3 sets of new heads, 2 of those fire ringed in 2005. Also the only job the lube does is to keep the fasgtener from binding and twisting during the install. Right back to the elastic range. Fasteners are much more susceptible to damage from exceeding the elastic range when twisted than when stretched lengthwise. Placing a band aid on a axe wound never works.... [/QUOTE]

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