TheRktmn Original Curbster

Joined: 22 Jun 2005 Age: 57 Posts: 8039 Location: TX, USA
1969 Mercury Cougar XR7
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Posted: Mon Dec 05, 2016 7:30 pm Post subject: Tech Tip: Larger Oil Filter |
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Here's a quick tip for using a larger oil filter on Ford V8s:
If you currently use the standard FL1-A1 1 quart oil filter, you can also use the larger 'truck' filter that Ford used on the '89 F700 429 truck engine. The FL1-A1 is ~4.75" long the truck filter is ~6.4".
The truck filter has the same bypass valve pressure (8-11 psi) and flows 7-9 gpm but holds roughly 50% (13 oz) more oil.
Manufacturer specs on the FL1-A1 vary between 4 gpm and 7 gpm, but the truck filter is rated at 7 or better for all manufacturers.
Large filter part numbers:
- Wix 51773
- NAPA 1773
- Purolator L40017
- Fram PH977A
- Motorcraft FL299
- FleetGuard LF697
The cost of the larger filter seems to vary from $6 to $11 depending on brand and retailer. The Fleetgaurd name is generally used on heavy trucks and farm equipment and seems to be the best priced. If you have a truck stop / service center near by you may find them there. The more common names can be found at most auto parts stores such as Advanced Auto Parts and NAPA. _________________ Bob
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