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the 351w in my '83, does it have roller lifters, or hydraulic lifters?? i am of the understanding that it is hydraulic, and i'm looking at this cam kit...
All the 351Ws came with hydraulic lifters (aka tappets) from the factory.
Before about 1994 they had flat tappets (the bottom of the tappet is simply flat, or actually very slightly convex), after this (except in Lightnings) they received roller tappets.
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.