I thought you guys would be interested in reading this comparison study because so many people are under the impression that both of these filters are exactly the same just different labels. Look at the difference in total square inches of filtering media surface, Ford Racing is 250 square inches compared to 156 square inches for the Motorcraft, that's 94 square inches less! A larger filtering surface means more oil flow and greater filtering capacity. I get my Ford Racing filters from LateModel Restoration Supply OIL FILTER, FL820 - HIGH PERFORMANCE MISCFORD for $12.99. The Ford Racing filter is built using thicker metal (noticeably heavier) for the can material and the threaded base plate is real beefy with deep high quality machined threads. I was using the K&N HP-2010 until I read this article. The Motorcraft and Ford Racing Filters both utilize a base end mounted bypass valve instead of a top dome mounted bypass valve like the K&N and Purolator models. You can read about the importance of the bypass valve location in the oil filter comparison link I have attached for you below.
Read this link for the full comparison FL-820S Oil Filter Alternatives
Ford Racing CM-6731-FL820 Oil Filter
Measurements
* Filter Weight - 19.75 oz
* Can OD - 3.68" / Seam OD - 3.76"
* Overall Height - 3.99"
* Can Material - 0.019" thick steel
* Filter Element OD - 3.44" (at element)
* Filter Element Height - 2.81"
* Media - Cellulose - Synthetic Mix? Oiled? (appears orange)
* Number of pleats - 63 + 1 joint
* Depth of pleats - 0.73"
* Media length (unrolled) - 100" (seam crimped)
* Media width (glue not included) - 2.50"
* Media thickness - 0.029"
* Total media surface area - 250 sq. in.
* Total media volume - 7.25 cu. in.
* Inner Filter Support Material - 0.010" Thick Perforated Steel
* Inner Filter Support OD - 1.71"
* Indentifying marks
Can - 810050516 / Made in USA
Bar Code - 7_56122_07567_8
Label - 6945234
Base - 22 / MM
* Gasket Retention - Multiple Crimps
* Thread - M22-1.5
* Relief Valve Location - base end
* ADBV Material - Silicon
Motorcraft FL-820S
Measurements
* Filter Weight - 13.1 oz
* Overall OD - 3.76" @ seam / 3.66 @ can
* Overall Height - 4.05"
* Can Material - 0.02" thick steel
* Filter Element OD - 3.25"
* Filter Element Height - 2.51"
* Media - Cellulose (appears pink/orange)
* Number of pleats - 43 + 1 joint
* Depth of pleats - 0.68"
* Media length (unrolled) - 65.5"
* Media width (glue not included) - 2.375"
* Media thickness - 0.035"
* Total media surface area - 156 sq. in.
* Total media volume - 5.4 cu. in.
* Inner Filter Support Material - 0.012" Thick Perforated Steel
* Inner Filter Support OD - 1.68"
* Indentifying marks
Can - Made in USA
ADBV - 6944453 / AAX / 150
* Gasket Retention - Multiple Crimps
* Thread - M22-1.5
* Relief Valve Location - base end
* ADBV Material - Silicone (orange)
K&N HP-2010 Filter
Measurements
* Filter Weight - 16.8 oz
* Overall OD - 3.66"
* Overall Height - 4.09" to top of "nut" / 3.71" to top of can
* Can Material - 0.02" thick steel
* Filter Element OD - 3.36"
* Filter Element Height - 2.24"
* Media - Synthetic (appears pink/orange)
* Number of pleats - 55 + 1 joint
* Depth of pleats - 0.72"
* Media length (unrolled) - 89.3"
* Media width (glue not included) - 2.1"
* Media thickness - 0.030"
* Total media surface area - 187 sq. in.
* Total media volume - 5.6 cu. in.
* Inner Filter Support Material - 0.015" Thick Perforated Steel
* Inner Filter Support OD - 1.66"
* Indentifying marks
Can - 072206C1 / Product of USA
ADBV - AAX / 77
Base - ZZ
* Gasket Retention - Press Fit
* Thread - M22 -1.5
* Relief Valve Location - dome end
* ADBV Material - Silicone (orange)
* Gasket includes lubricant
Purolator PureOne PL24651 Oil Filter
Measurements
* Filter Weight - 12.6 oz
* Overall OD - 3.76" @ seam / 3.66 @ can
* Overall Height - 3.77"
* Can Material - 0.014" thick steel
* Filter Element OD - 3.25"
* Filter Element Height - 2.65"
* Media - Cellulose (appears pink/orange)
* Number of pleats - 60 + 1 joint
* Depth of pleats - 0.68"
* Media length (unrolled) - 91.5"
* Media width (glue not included) - 2.56"
* Media thickness - 0.030"
* Total media surface area - 234 sq. in.
* Total media volume - 7.0 cu. in.
* Inner Filter Support Material - 0.010" Thick Perforated Steel
* Inner Filter Support OD - 1.72"
* Indentifying marks
Can - F07518G2 / Made in USA
ADBV - 6944453 / AAX / 104
* Gasket Retention - Multiple Crimps
* Gasket includes teflon
* Thread - M22-1.5
* Relief Valve Location - dome end
* ADBV Material - Silicone (orange)
Read this link for the full comparison FL-820S Oil Filter Alternatives
Ford Racing CM-6731-FL820 Oil Filter
Measurements
* Filter Weight - 19.75 oz
* Can OD - 3.68" / Seam OD - 3.76"
* Overall Height - 3.99"
* Can Material - 0.019" thick steel
* Filter Element OD - 3.44" (at element)
* Filter Element Height - 2.81"
* Media - Cellulose - Synthetic Mix? Oiled? (appears orange)
* Number of pleats - 63 + 1 joint
* Depth of pleats - 0.73"
* Media length (unrolled) - 100" (seam crimped)
* Media width (glue not included) - 2.50"
* Media thickness - 0.029"
* Total media surface area - 250 sq. in.
* Total media volume - 7.25 cu. in.
* Inner Filter Support Material - 0.010" Thick Perforated Steel
* Inner Filter Support OD - 1.71"
* Indentifying marks
Can - 810050516 / Made in USA
Bar Code - 7_56122_07567_8
Label - 6945234
Base - 22 / MM
* Gasket Retention - Multiple Crimps
* Thread - M22-1.5
* Relief Valve Location - base end
* ADBV Material - Silicon
Motorcraft FL-820S
Measurements
* Filter Weight - 13.1 oz
* Overall OD - 3.76" @ seam / 3.66 @ can
* Overall Height - 4.05"
* Can Material - 0.02" thick steel
* Filter Element OD - 3.25"
* Filter Element Height - 2.51"
* Media - Cellulose (appears pink/orange)
* Number of pleats - 43 + 1 joint
* Depth of pleats - 0.68"
* Media length (unrolled) - 65.5"
* Media width (glue not included) - 2.375"
* Media thickness - 0.035"
* Total media surface area - 156 sq. in.
* Total media volume - 5.4 cu. in.
* Inner Filter Support Material - 0.012" Thick Perforated Steel
* Inner Filter Support OD - 1.68"
* Indentifying marks
Can - Made in USA
ADBV - 6944453 / AAX / 150
* Gasket Retention - Multiple Crimps
* Thread - M22-1.5
* Relief Valve Location - base end
* ADBV Material - Silicone (orange)
K&N HP-2010 Filter
Measurements
* Filter Weight - 16.8 oz
* Overall OD - 3.66"
* Overall Height - 4.09" to top of "nut" / 3.71" to top of can
* Can Material - 0.02" thick steel
* Filter Element OD - 3.36"
* Filter Element Height - 2.24"
* Media - Synthetic (appears pink/orange)
* Number of pleats - 55 + 1 joint
* Depth of pleats - 0.72"
* Media length (unrolled) - 89.3"
* Media width (glue not included) - 2.1"
* Media thickness - 0.030"
* Total media surface area - 187 sq. in.
* Total media volume - 5.6 cu. in.
* Inner Filter Support Material - 0.015" Thick Perforated Steel
* Inner Filter Support OD - 1.66"
* Indentifying marks
Can - 072206C1 / Product of USA
ADBV - AAX / 77
Base - ZZ
* Gasket Retention - Press Fit
* Thread - M22 -1.5
* Relief Valve Location - dome end
* ADBV Material - Silicone (orange)
* Gasket includes lubricant
Purolator PureOne PL24651 Oil Filter
Measurements
* Filter Weight - 12.6 oz
* Overall OD - 3.76" @ seam / 3.66 @ can
* Overall Height - 3.77"
* Can Material - 0.014" thick steel
* Filter Element OD - 3.25"
* Filter Element Height - 2.65"
* Media - Cellulose (appears pink/orange)
* Number of pleats - 60 + 1 joint
* Depth of pleats - 0.68"
* Media length (unrolled) - 91.5"
* Media width (glue not included) - 2.56"
* Media thickness - 0.030"
* Total media surface area - 234 sq. in.
* Total media volume - 7.0 cu. in.
* Inner Filter Support Material - 0.010" Thick Perforated Steel
* Inner Filter Support OD - 1.72"
* Indentifying marks
Can - F07518G2 / Made in USA
ADBV - 6944453 / AAX / 104
* Gasket Retention - Multiple Crimps
* Gasket includes teflon
* Thread - M22-1.5
* Relief Valve Location - dome end
* ADBV Material - Silicone (orange)