Intake And Exhaust Valve Spring Compatible With : Ford 4.6L, V8 281, SOHC 16 Valve, 1999-2014 - 5.4L, V8 330, SOHC 16 Valve, 1999-2016 - 6.8L, V-10 415, SOHC 20 Valve, 2000-2019 - Mercury 4.6L, V8 281, SOHC 16 Valve, 2000-2011 - Linncoln 4.6L, V8 281, SOHC 16 Valve, 2000-2011