<VV> Repairing a failed crankcase stud thread repair

[Doug Mackintosh]

I need some advice on a crankcase stud problem. The engine I'm working on has 2 pulled out upper head studs. One is an original stud, not previously repaired, which I planned to fix with a long Time-Sert. 
   
  The other is the # 5 Exhaust upper head stud. Some miscreant apparently repaired this one with a short (7/16 long) helicoil, which has pulled completely out of the block. From what I have read it looks like a 0.75 long Big-Sert is the best fix for this. 
   
  Is that right? And where can I obtain the part and tool (preferably rental).
   
  Thanks


-- Doug Mackintosh
  Corsa member since 1996
  Corsa/NC member since 1996,  Virtual Vairs member
  Corvair owner 1969-1971 and 1996-on
       
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