What is the bolt tightening sequence shown in this diagram?

The fourteen bolts are numbered in tightening order. Top row left to right: 13, 8, 4, 1, 5, 9, 12. Bottom row left to right: 14, 7, 3, 2, 6, 10, 11. Tightening starts at the center bolts (1 and 2) and works outward to the ends (13 and 14).

How many bolts are in the tightening sequence?

Fourteen bolts are shown, arranged in two rows of seven.

Does this document give torque values for the bolts?

No. This crop shows only the numbered tightening sequence diagram; no torque figures, engine identification, or other text are visible.

Where does the tightening sequence begin?

It begins with bolt 1 near the center of the top row and bolt 2 near the center of the bottom row, then alternates outward until bolts 13 and 14 at the far left ends.

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Ford 14-Bolt Cylinder Head Tightening Sequence Diagram - 1973 Ranchero Doc

Cylinder head bolt tightening sequence diagram numbering 14 bolts

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Cylinder head bolt torque-sequence diagram showing the numbered tightening order for fourteen head bolts.

AI caption November 2008 · Photo 158 of 1042

This document is a scanned illustration showing a bolt tightening sequence diagram, most likely for a cylinder head, filed under a 1973 Ford Ranchero gallery as a torque-spec reference. The drawing depicts an elongated head/gasket outline with fourteen circled numbers arranged in two horizontal rows of seven. The upper row reads, from left to right: 13, 8, 4, 1, 5, 9, 12. The lower row reads, from left to right: 14, 7, 3, 2, 6, 10, 11. The numbering indicates the order in which the fourteen fasteners should be tightened, starting from the center bolts (1 and 2) and working outward in an alternating pattern toward the ends (13 and 14). No torque values, engine identification, year applicability, part numbers, or written captions are visible in this crop — only the numbered sequence diagram itself. A reader can learn the correct tightening order for the fourteen bolts shown, but must consult the accompanying page or manual for the actual torque specifications and the specific engine application. The two-row, fourteen-bolt layout suggests an inline engine head rather than a typical Ford small-block V8 pattern.

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Frequently asked questions

What is the bolt tightening sequence shown in this diagram?: The fourteen bolts are numbered in tightening order. Top row left to right: 13, 8, 4, 1, 5, 9, 12. Bottom row left to right: 14, 7, 3, 2, 6, 10, 11. Tightening starts at the center bolts (1 and 2) and works outward to the ends (13 and 14).
How many bolts are in the tightening sequence?: Fourteen bolts are shown, arranged in two rows of seven.
Does this document give torque values for the bolts?: No. This crop shows only the numbered tightening sequence diagram; no torque figures, engine identification, or other text are visible.
Where does the tightening sequence begin?: It begins with bolt 1 near the center of the top row and bolt 2 near the center of the bottom row, then alternates outward until bolts 13 and 14 at the far left ends.