one more thing we have in common Doc!I steal from plumbers too .They should hold up.some plumber told me along time ago that those coupling will hold up to about 250 degrees(other wise they would go to ---- with hot water).i dont know how much boost they would hold though.

 

ebay has the silicone couplings for really cheap, i'd probably rather go that way

 

the rubbers also ballon a little as they get old and twist and do some wierd stuff lol. Damn i knew i should have took pics of my old ones :P

 

home depot couplers never fail

 

go to the parts store and find the right diameter radiator hose then cut it to fit. If you looked at my chargepipes you would understand