Nothing bad taken nothing bad ment.
What RPMS do you think you need to turn? What were you turning when it broke?
$135 gets head work from me. Shave the heads a little and spring and retainers and keepers and port work.
No need for anything else. Heads, cam and carb work I do turn to 7,200 rpm with tons of power all the way there. I hit 8,080 rpms on some missed shifts with no damage.
Sure there is more a guy can do to any motor but the basic question is why? Why does everyone think 1,500 to 7,200 rpms is not good enough? Briggs balanced cranks in twins are good for 6,000 generally and anything above will weaken them.
Same goes with the singles. I balance them to 6,000 rpms also. Most guys turning way above that all the time will break them.
So goes it with Automotive motors too. Crazy Harmonics happen to all motors above 6,300 rpms.
Again not mad or whatever. Not trying to
things up a bit either.
You have to understand I watch the races on TV and I watch the races at the track and I watch what folks do with motors and their finish too. Why better feed back then a dyno this is. This is real world feed back.