Best way to remove cylinder studs of a GSX1100 ?

[LLD]

What is the best way to remove cilinder studs of a GSX1100 ? Are there any handy tools ?

 

I tried heat and two nuts but that did work well, they keep slipping or getting destroyed.

 

Need to get them out for boring the crankcase and swapping for EFE ones

[Swiss Toni]

Just keep on with the heat. If you’re trashing the studs, get a grip on the stud as low as you possibly can. Heat/cool is the answer. Two nuts will just twist and snap the stud. 
Patience!

[PaintItBlack]

I found a pipe wrench worked for me when I was doing my gs thou,

 

[Swiss Toni]

5 hours ago, PaintItBlack said:

I found a pipe wrench worked for me when I was doing my gs thou,

 

Ok if renewing the studs, not so much if re-using. Marks them up too badly. 

[bitzz]

Replacing the headbolts on your 40 year old bike, that is known for head leaks, is probably a good idea

Weld nuts on and spin them out.

Make new ones from 10mm drill rod.

Can you still buy aftermarket head bolts for these bikes? It used to be a popular "upgrade".

[LLD]

Thanks for the feedback

 

I managed to get them out. LOTS of heat was the answer. It requires some serious heating but then it was actually not too bad

Funny enough it was the small M6 studs which required a pipe wrench and will need to be replaced

 

[PaintItBlack]

9 hours ago, Swiss Toni said:

Ok if renewing the studs, not so much if re-using. Marks them up too badly. 

Yes, agreed

The studs were quite damaged from the pipe wrench, but in my case I had no intention to reuse them, and all other methods of trying to get them out had failed, it was a last resort 

[Swiss Toni]

I forgot to add … An old trick for seized threads, was to apply plenty heat and, before anything else, apply a small candle to the thread of the stud/bolt/nut. The capillary action sucks the paraffin wax into the threads and, nine times outta ten, frees off the recalcitrant object. 
Robert’s your Mothers Brother!

Seemples!