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Ford V8 Firing Order 1-5-4-2-6-3-7-8 Diagram - Cylinder & Distributor Layout

Schematic showing cylinder bank numbering and distributor cap firing-order rotation.

AI caption · Photo 5 of 13

This document is a firing order / cylinder numbering schematic for a Ford V8 engine, watermarked www.mre-books.com. It shows the engine as viewed from above with two cylinder banks: one bank numbered 1 through 4 (front to rear) and the other bank numbered 5 through 8 (front to rear). Below the cylinder layout is a distributor cap diagram with its eight spark plug wire terminals labeled in the sequence 1-5-4-2-6-3-7-8, arranged counterclockwise around the cap, and an arrow indicating the rotor's counterclockwise rotation direction. The filename (15426378) also encodes this firing order. From this diagram a reader can determine the correct cylinder numbering on each bank, the firing order 1-5-4-2-6-3-7-8, the correct terminal on the distributor cap for each spark plug wire, and the direction of distributor rotor rotation — everything needed to route spark plug wires correctly after a tune-up, cap replacement, or distributor removal. The document itself contains no year, model, engine displacement, or part number text, so its exact application must be inferred; it was uploaded to a 1969 Ford Mustang gallery.

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Frequently asked questions

What firing order does this diagram show?
The distributor cap terminals are labeled in the sequence 1-5-4-2-6-3-7-8.
How are the cylinders numbered in this diagram?
One bank is numbered 1, 2, 3, 4 from front to rear, and the other bank is numbered 5, 6, 7, 8 from front to rear.
Which direction does the distributor rotor turn?
The arrow on the distributor cap diagram indicates counterclockwise rotation, matching the counterclockwise arrangement of terminals 1-5-4-2-6-3-7-8.
Where does the #1 spark plug wire go on the distributor cap?
The #1 terminal is shown at the upper-right position of the cap, with the remaining wires following counterclockwise in the order 5, 4, 2, 6, 3, 7, 8.

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