Comp Cams- Beehive 3 Valve 4.6L, Valve Springs Specifications: Fits 2005-2010 4.6 three valve V8 Mustangs Sold as a set of 24 springs OD: Top .959" Bottom 1.061" ID: Top .636" Bottom .738" Seat Pressure: 93 lbs @ 1.570'' Open Pressure: 198 lbs @ 1.020'' Coil Bind: .952" Spring Rate:... MSRP: Was: Now: $395.95 Add to Cart