What is the firing order on distributor cap Chevy 454 silverado?

The firing order for a Chevy 454 (7.4L big-block V8) in a Silverado, regardless of the year, is generally 1-8-4-3-6-5-7-2. However, it's crucial to double-check your specific engine. The firing order can sometimes be found:

* On a sticker under the hood: Many vehicles have a sticker detailing engine specifications, including firing order.

* On the engine itself: Sometimes it's cast into the block or on a valve cover.

* In your owner's manual: This is the most reliable source.

Don't rely solely on the general firing order. Confirm it for your specific year and model Silverado to avoid potential engine damage.