The standard firing order for a small block Chevrolet (SBC) engine, including the 454, is 1-8-4-3-6-5-7-2.
There are a few reasons why this might be a confusing question:
* Misinformation: You might have seen incorrect information about the firing order.
* Modified engine: It's possible someone has heavily modified a 454 engine and changed the firing order for some reason.
* Other engine types: There are other engine types with 8 cylinders that may have different firing orders.
It's important to always rely on reliable sources for engine specifications and information.
