Ford 6.4L Technical Manual

If you’re building a Ford 6.4L short block and you grab a Haynes or Chilton, you’re going to waste time tracking down part numbers that don’t match. I’ve been there. This 47-page Technical Manual is what Ford’s own guys use. It starts with a parts logistical nightmare and walks you through every o-ring, gasket, and fastener with actual Ford part numbers and pictures. No guessing.

The technician who wrote this manual went through the build twice. The first time was a nightmare. The second time he brought a camera and recorded every part number he pulled. That’s what you get here — a real-world build log with Ford codes like 3C3Z-9C064-DA for the crank sensor o-ring and 8C3Z-6A642-A for the oil cooler cover assembly kit.

Short Block Build: Part Numbers and Pictures

Page 4 shows the oil cooler kit installation. The manual includes a service instruction card from Ford with part number 32859 Revision -. You’ll see exactly which o-rings are 4-count (block heater) and which come as a kit (cam o-rings). The author lists the parts in the appendix, so you can print that page and highlight what you need. Skip the aftermarket junk.

Oil Cooler Kit Installation: Gasket Quantities Matter

On page 4, the oil cooler cover assembly kit (8C3Z-6A642-A) includes specific instructions to refer to the Engine Service Manual for disassembly. But this technical manual gives you the exact Ford part numbers for the gaskets and o-rings you’ll need. The block heater o-ring is a 4-count — you get four in the bag. Don’t reuse old ones.

Ford 6.4L Technical Manual: What’s Inside These 47 Pages

This isn’t a reprint of some third-party summary. It’s the original Ford technical document, 47 pages long, covering short block and long block assembly. The table of contents isn’t listed in the PDF metadata, but the author walks you through the build step by step: crank sensor o-ring (3C3Z-9C064-DA), oil drain back fitting o-ring, turbo pedestal gasket (W302508, 4-count). Every page has a photo with the part number written in.

How Many O-Rings Does This Build Require?

The author lists them all. Block heater: 4-count. Cam o-rings: kit (3C3Z-9N693-BA). Oil drain back fitting: single o-ring. Crank sensor: single o-ring that gives parts guys fits. That’s on page 2. The turbo pedestal gasket is also 4-count (page 5). If you order aftermarket you’ll get the wrong count and waste a trip to the dealer.

3 Reasons to Use Factory Part Numbers

First, the 6.4L has unusual o-ring sizes — the crank sensor o-ring is a specific Ford design that aftermarket catalogs often mislabel. Second, the gasket counts are critical: the turbo pedestal gasket comes in a pack of four because you’re supposed to replace all four bolts’ sealing washers. Third, the oil cooler kit includes a specific sealant requirement that generic kits skip. This manual gives you the Ford codes so you order the right stuff the first time.

For an overview of the automotive industry standards behind these manuals, see Automotive Industry Overview and Automotive Industry Overview.

Related Manuals

• Ford 6.4L Workshop Manual – OEM Torque Charts & Wiring
• Ford Mondeo 2003 Technical Manual – OEM Factory Data
• Ford FALCON Technical Manual – Multibody Vehicle Dynamics

Frequently Asked Questions

Does this manual cover the long block too?

Yes.

Are torque specs included in this 47-page Ford 6.4L Technical Manual?

The manual references the Engine Service Manual for torque values—you’ll need that separately for head bolt sequence and bearing clearances. But every fastener part number and o-ring size is listed with Ford codes. The author specifically says to refer to the engine service manual for disassembly instructions, so torque specs aren’t reprinted here. You’ll still need the factory workshop torque chart for final assembly.

Can I use aftermarket gaskets with this build?

The author lists Ford OEM part numbers for a reason. Aftermarket gaskets may differ in material thickness or rubber compound, causing leaks. Stick to the numbers in the manual — especially for the turbo pedestal gasket (4-count) and the oil cooler o-rings.

Is this a downloadable PDF?

Yes, the file is a digital PDF. You can print the appendix page with all part numbers and take it to your parts counter.

If you’re building a 6.4L short or long block and you want to avoid the headache of wrong parts and wasted time, get the factory documentation. Download the Factory Manual now.