What is the firing order for Ford 351C, 351M, and 400M engines?

The firing order is 1-3-7-2-6-5-4-8, as shown in the banner at the top of the diagram.

Which direction does the distributor rotate on a 351C, 351M, or 400M?

The distributor rotates counter-clockwise, as stated in the diagram and shown by the curved arrow on the distributor cap.

How are the cylinders numbered on these Ford V8 engines?

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, with cylinder 1 at the front of the bank shown on the left of the diagram.

Where is the number 1 spark plug wire on the distributor cap?

In the diagram, the number 1 terminal is at the top of the distributor cap, with the remaining wires following the firing order counter-clockwise around the cap (1, 8, 4, 5, 6, 2, 7, 3 shown clockwise).

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Ford 351C, 351M & 400M Firing Order Diagram - 1-3-7-2-6-5-4-8

351C/351M/400M engine firing order diagram with cylinder numbering and distributor rotation

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Firing-order schematic for Ford 351C, 351M and 400M V8 engines showing cylinder sequence 1-3-7-2-6-5-4-8 and counter-clockwise distributor rotation.

AI caption October 2016 · Photo 265 of 356

This document is a firing order diagram for Ford 351C (Cleveland), 351M, and 400M V8 engines. Across the top, an orange banner displays the firing order 1-3-7-2-6-5-4-8 in numbered blue circles. Below the title, a photo of the engine block (viewed from above/front) shows cylinder numbering: the left bank is numbered 4, 3, 2, 1 from front to rear (cylinder 1 at the front), and the right bank is numbered 8, 7, 6, 5. Beneath the block, a distributor cap diagram shows the spark plug wire positions arranged around the cap, with the number 1 terminal at the top and the remaining terminals (8, 4, 5, 6, 2, 7, 3) positioned clockwise around the cap. A curved arrow and text note that the distributor rotates counter-clockwise. Two orange arrows labeled "Clip" indicate the locations of the distributor cap retaining clips. The graphic is credited to www.gtsparkplugs.com. From this document, a reader can determine the correct firing order, cylinder bank numbering, distributor rotation direction, and proper spark plug wire routing on the distributor cap for these Ford engines.

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Frequently asked questions

What is the firing order for Ford 351C, 351M, and 400M engines?: The firing order is 1-3-7-2-6-5-4-8, as shown in the banner at the top of the diagram.
Which direction does the distributor rotate on a 351C, 351M, or 400M?: The distributor rotates counter-clockwise, as stated in the diagram and shown by the curved arrow on the distributor cap.
How are the cylinders numbered on these Ford V8 engines?: 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, with cylinder 1 at the front of the bank shown on the left of the diagram.
Where is the number 1 spark plug wire on the distributor cap?: In the diagram, the number 1 terminal is at the top of the distributor cap, with the remaining wires following the firing order counter-clockwise around the cap (1, 8, 4, 5, 6, 2, 7, 3 shown clockwise).