Had one pop out of my hand, bounce off the headers and then fall into the abyss where tools and parts vanish, never to be seen again. Literally wasted hours looking into every crevasse, shaking, poking, blowing compressed air into, etc etc. Anyone know where I can get these? I've asked everywhere from engine rebuilding shops to simple machine shops to parts stores to the dealer and nobody can get anything close. Looked online and can't find anything either.

 

dealer

 

GM Cylinder Head Dowel # 12570326

 

I've got the dowel in stock if you're still looking.

 

"Never Never Land"