Will these bolt up to factory exhaust manifold mounting points?

Yes — these mount at the factory rocker arm points. No frame drilling or custom welding required. You'll want to verify your current exhaust path before final assembly to confirm collector clearance.

Do I need to port-match these to my intake or gasket surfaces?

Headers ship ready to install. Inspect the port openings against your cylinder head before bolting down — a file and sandpaper can smooth any minor casting inconsistencies if needed, but most installs go straight to torque specs.

What about heat shielding or wrap — does anything come with these?

Headers only. You'll want to evaluate your engine bay layout for thermal concerns — some builders wrap the primaries, others rely on air flow. Test-fit first, then decide if additional heat management makes sense for your setup.