Do these headers require any welding or cutting to fit my engine bay?

Designed as bolt-on fitment to factory small block mounting points — no welding required. Test-fit before final install to confirm clearance at fenderwell and intake manifold areas.

Can I run these headers straight out of the box or do they need ceramic coating?

These ship ready to install. Stainless steel resists oxidation naturally, but you can ceramic coat for additional heat management if desired — that's up to your build goals.

What fasteners do I need to bolt these on?

Headers bolt at the engine block. Bring your original hardware or source Grade 8 bolts matching your small block's head bolt pattern — confirm specs with your engine manual before assembly.