Head bolt size
 

I've looked around a little but can't find what I'm looking for. I know that the thread pitch for the head bolts is 1.25. Is the bolt size M10 or M11? My tap and die set only goes up to M9 and I want to make sure I buy the right one.

Thanks,
Jason

i looked for one locally (to be honest i don't remember the size) and couldn't find one quickly and cheap, so i cut four grooves in the best looking old bolt and used it. worked great. a die grinder and 1/8" cut wheel does the trick.

looks like a 12:
http://wiki.answers.com/Q/What_are_t...der_head_bolts