E-Type Filter Head Identifier
Jaguar E-Type filter heads are easily interchangeable. Because of this, they are often interchanged. I've seen enough of these problems to believe that Jaguar themselves often used whatever part was on the shelf, especially around the transition years. If you are buying a conversion kit, it's important to visually verify which filter head is on your car. Just match to the following photos (click on photos to enlarge.) Buy a kit to match the filter head, regardless of which engine or model you have.
S1 3.8
S1 4.2
S2 4.2

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