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Just got my summit headers and didn't receive any gaskets. I was looking on summitracing.com and found that they don't have any gaskets for the 5.4, but they have gaskets for the 4.6. Don't these two engines have the same exhaust ports? Could i order the 4.6 ones?
Also how does everyone feel about Percy Seal-4-good Gaskets? they are supposed to be solid aluminum, but they conform to the heads/headers to prevent blowouts and burning of gaskets, they even claim they're reusable.
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.