thanks for fixing my link, guess i need to read hyperliking for dummies...lol
i'm wasn't trying to sway people away from this site just thought with all the knowledge here it could benefit them when (if) that site grows.
didn't mean to sound like an ass, i read the post from the beginning, then re-read it. I was just throwing out some food for thought. I deal with issues along these lines every day, i'm currently involved in aircraft maitenance in the USAF as a machinist and welder.
your statement about 1/2 headstuds WOULD be true if all metals were created equal. if you get a chance look at a rockwell hardness test sheet.All the measurements are for the metals hardness and are measured in psi. from that you can calculate a metals tensile strength which is a metals...
maybe a sticky on all the companies that have stepped up and started making product for these engines, and maybe also a general listing of interesting things discovered such as rods and pistons that fit. it might make it easier for new people.
steve
hard to tell from pics how thick it is but i'm willing to bet there's enough wall thickness to get enough threads cut. but i'd still put some teflon tape and thread locker in there.
edit: i'd use a pipe tap.
check with local weld supply shops in your area for their reccomendation on your specific needs. as for gas i would use an argon Co2 mix, if you are going to use mig.
lex for Al you are going to need Al wire, most mig setups i've seen gear more toward steel groups. buy yourself some good Al and steel wire. in my shop we use randor .035 for all our light and medium steel work for anything heavy we use arc, and for all the aluminum and titanium we use tig.