Reply to "Header color question"

garth66"When speed is the only thing that counts"

quote:
Stainless has a heat conductivity of ca. 14-16 while mild steel has a conductivity of around 22-31. So stainless exhausts naturally run a little cooler

Can't necessarily agree with that statement. I've found that the stainless tri-y headers on my 66 GT Mustang seem to get a LOT hotter (although I didn't verify with an IR temp gun) and retain more heat longer than the mild steel tri-y's they replaced. With the mild steel tri-y headers, I could work on the engine 20-30 minutes after shut down without burning myself if I touched a header. The stainless tri-y's will burn you 1-2 hours after shut down. Just my experience. YMMV.

8/1/142:49 PM

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