Don't y'all love it when head studs pull out!

[Ray_barnes22]

I did a o ring kit in my duner today and went to torque em all at 21lbs and 7 out of 10 pulled. The last time I used helicores and it held great. Just wondering if there is something better or is helicore fine? Oh it's a Noss head by the way.

[Abe]

time serts will get you back going,  If your not equipped with materials to maintain a perfectly strait installation i recommend letting a site sponsor make the repairs 

[troyzstang]

Did you measure to ensure they were completely seated?

[rickfarmer]

I had this happen to me on my last stock cylinder bike, i took 1/2 coarse all thread and had machinist cut it drill and tap it for the stk 8mm studs and then i drilled a old stk head and bolted it on and used it as a guide to drill the cylinders. worked great and havent had a problem since. FYI i used the time cert(90 bucks)first and had no luck

[Ray_barnes22]

Sorry I wasn't clear. The studs that pulled were stock not helicore just wondering is helicore the best thing to repair with.