8.1 Workhorse exhaust bolt broken
Have an 8.1 in an 05 Tiffin. Rear most pass side exhaust bolt broken below the mating surface. Any ideas w/o removing the head? Possibly have room to drill and tap not sure. Anyone ever use the KRAL b...
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Make sure you use a drill stop. On a Ford, there is only a 1/4 inch of metal at the bottom before you get into the water jacket. Might be the same on the Chevy. IMHO, going to headers after the fix is the best solution. If the exhaust manifold itself is warped greater than .01 inch your going to have a return of the same issue. Go to Banks or Thorley headers.
