MK1 XR2 was a 1.6 KENT engine (Valencia was launched with the Fiesta MK2) with 84 hp,
MK2 XR2 was a 1.6 CVH engine with a 34/32 twin-choke weber carb and a ESC-II ignition and 97 hp, this setup was produced until autumn 1986
the later MK2 XR2 had a 1.6 CVH engine with other pistons and the lean burn head and only a 32/28 twin-choke carb. Rumors say this engine just produces about 90 hp, ford still sold it with 96 hp