Exhaust Header Hardware
Correct ~
Headers are thinner and don't ' crawl ' like cast iron exhaust manifolds do .
FWIW , you don't " tap the holes " as they're already threaded ~ just use vise grips or a stud remover to remove the pins then use an appropriate size bolt .
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-Nate
Geezer
'49 3100 235 W/ Muncie SM420 SOLD
'69 C/10 shortbed sidemount survivor 250 L6 W/ 350TH 
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