Rolls-Royce Spey were used on TRIDENT Jets, and Spey MK202 Turbofan jet is a jet used on F-4K English edition, which lengthened the range of F-4K, and enhanced F-4K's low speed and altitude performance.
General specs:
Type: Low bypass turbofan
Length: 204.9 in (5204.4 mm)
Diameter: 43.0 in...