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So here is my problem the code says f25ykd
In the book it shows a v8 in it but it has a straight six in it
Am I reading it wrong
Also if it is a straight six how can I tell what size it is
Well the other thing I realized was I was looking in the wrong spot
There is a code on the door but I read where it is under the hood
But couldn't find it
Where did you get this VIN from...off the registration, or off the Warranty Plate?
The Warranty Plate is located on the left door face below the latch-1963/80 except F100/350 Open Drive-Away's.
Open Drive-Away's: Chassis & Cowl and Chassis & Windshield: The plate is under the hood (on the cowl panel), because these trucks have no doors (no roofs either).
A repro parts catalog I was browsing thru recently said all 1967/72's have the plate on the cowl panel. That's total BS, excepting Open Drive-Away's.
Peeps replaced damaged left doors with used doors. 99% of the time, they failed to install the original Warranty Plate on the replaced door.
Measure the stroke to determine the engine size: 240 = 3.18" / 300 = 3.98."