Lets say it; "street motors" don't need to worry about race studs. If you aren't up at compression levels that need 100 octane race gas, any stud issues are more about assembly than material. Gary with a higher miles 750 that showed 190 PSI per side on a gauge that puts a healthy stock motor at 155. (but it may have HD studs) so?? This motor is now showing about 170/180 after I've ridden it a lot of miles, one side has some cylinder scuffing.
If you want to delve into fastener specifications here's a starting point. https://www.indfast.org/info/free-technical-info.asp
If you want to delve into fastener specifications here's a starting point. https://www.indfast.org/info/free-technical-info.asp
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