Header bolt size

Darth Plasma · Jan 27, 2020

My 87 has aftermarket headers and they must have been on there a long time because the gaskets are shot and they're rusty. I can't take the obnoxious ticking anymore and constantly applying header sealant paste that keeps blowing apart. The bolts don't look too bad but I know it's a guarantee to break at least one or 2, so I'm getting a new set. What size are these? I keep coming across both 5/16" and 3/8". I'm assuming they're like an inch in length too?

TubeTruck · Jan 27, 2020

Mine are 3/8" and about an inch long

Darth Plasma · Jan 27, 2020

TubeTruck said:
Mine are 3/8" and about an inch long

Thanks

bucket · Jan 27, 2020

They will probably all come out without breaking.

78C10BigTen · Jan 27, 2020

bucket said:
They will probably all come out without breaking.

Manifold bolts...yes they usually break but since using headers they ususlly loosen on their own! Always have to keep tightening them when i start hearing the ticking

Darth Plasma · Jan 28, 2020

78C10BigTen said:
Manifold bolts...yes they usually break but since using headers they ususlly loosen on their own! Always have to keep tightening them when i start hearing the ticking

I'll use a high temp thread lock for the new ones

Header bolt size

Darth Plasma

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TubeTruck

I'm from Boston. Deal with it.

Darth Plasma

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bucket

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78C10BigTen

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Darth Plasma

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