What are my options?

[bombadier]

My S1 K series has sheared at least one stud holding the exhaust manifold to the head. Does anyone have any bright ideas about the best way to resolve this. Is it, for example, viable to repair, or is it a new head needed? There is no stud protruding, but I guess that with the head off there may be a stud extractor that will work.

If a new head is required, and looking at this as an opportunity to make a few improvements rather than a complete pain in the proverbial, can I fit a VVC head to an otherwise standard engine, or should I go for some headwork and Piper 270 cams on a standard second hand head. Can anyone recommend someone good in the South East to do the work?

Should I use an 'uprated' head gasket, and if so which one - there seem to be several conflicting opinions regarding which is best.

Many thanks

Bombadier.

[lamb jiblets]

Evening, you could try a stud extractor but if you snaped it off the chances are its in there good and proper, You could try drilling it out then run a tap down the hole to clean out the remainder of the thread.( you will need a cobalt drill bit, centerpunch and some cutting compound)

[TIPPER]

In your shoes I'd get the head to either Kiwirog at Sabre Heads in Wisbeech (I think) or Dave Andrews at DVA Power (Milton Keynes). Either will port your head for you and advise on cams (you might find Piper 633s a good match).
They'd also advise on head gasket. Don't forget to check liner heights whilst the head is off.

[tricky 100]

Go to your local motor factors , Halfords even do them i think , and purchase an Easy out stud extractor .Quite simple to use as long as you have enough access .