Will a 350 exhaust manifold fit 454 engine?

Here's why:

* Cylinder Head Bolt Pattern: The bolt pattern on the cylinder heads of a 350 engine is different than that of a 454 engine. This means the manifold won't physically bolt onto the 454 heads.

* Exhaust Port Size and Location: The exhaust ports on a 454 are larger and positioned differently than those on a 350. This would result in a mismatch between the manifold and the engine, leading to poor exhaust flow and potential damage.

You will need a specifically designed exhaust manifold for a 454 engine.