ECOBOOST 2.3L - DOHC 16 VALVE Type/Material/Application: Single Spring PAC Alloy - Turbo Endurance Application Outside Diameter: 24.61 mm Inside Diameter: 17.40 mm Seat Press.: 75 lbs @37.75mm Open Press: 160 lbs @27.75mm Rate Inch: 215.7 lbs Coil Bind: 23.78mm Max Net Lift: 12.7mm This spring requires Ferrea Titanium Retainer # E11135 and Ferrea Spring Seat Locator / Valve Hat Seal # SL1147. (Discard OEM Factory supplied Spring Seat Locator / Valve Hat Seal)
ECOBOOST 3.5L - DOHC 24 VALVE (TURBO) Type/Material/Application: Single Spring PAC Alloy - Turbo Endurance Application Outside Diameter: 24.61 mm Inside Diameter: 17.40 mm Seat Press.: 75 lbs @ 37.95 mm Open Press: 160 lbs @ 27.95 mm Rate Inch: 215.7 lbs Coil Bind: 24.35 mm Max Net Lift: 12.5 mm This spring requires Ferrea Titanium Retainer # E11143 and Ferrea Spring Seat Locator / Valve Hat Seal # SL1155. (Discard OEM Factory supplied Spring Seat locator / Valve Hat Seal)
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