Nate, The P.O of my car (thank you, Harold) used a pair x-large hose clamps around the outside of the coolant bottle. They held up for over 100,000 miles in the Texas heat. I only replaced the bottle because the plastic was starting to show spider-cracks everywhere, and I was worried more about it bursting than splitting in half. You should have seen that bottle, though...the plastic had swollen around the clamps. It looked like a balloon with a string tied around it. With fiberglass, you could probably make a new header bottle with sufficient strength...or just buy a new tank. Kevlar?!?? Gus Schlachter VIN #4695 Austin, Texas To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/