Originally Posted by bikeme
Good advice. Thanks DaveC. What did you torque studs to?
I'm torqueing to 12.5 Ft Lbs, some will say as much as 18 Ft Lbs but to each his own. I think 15 Ft Lbs should be max.
The SBP stud is actually a section of all-thread. The M8 1.00 comes with 13mm nuts for more room for a socket and it turns out the size needed for a conversion to a Puch head, there's no room for a 14mm socket.
All I can really say is it's a bad idea to try and put a M8 1.25 into a M8 1.00 hole, even retapping the hole. If you must change threads then helicoil to the correct size. Cross-tapping a thread like that means the next step is JB Welding the stud in.