1-8-4-3-6-5-7-2
This means that cylinder #1 fires first, followed by cylinder #8, then cylinder #4, and so on.
It's important to note that this is the standard firing order for most Chevy small block engines, but there are some exceptions. If you are unsure of your engine's firing order, you can consult a repair manual or look for a sticker on the engine block.
