Josep : Just to give you (and others), a little more detail on the "Challenger V8 Engine", here it is. When the 1964-1/2, February 1964 Brochure was printed, there was no reference to a "Challenger V8" ; only a 164 hp 260 V8, a 210 hp 289, and a 271 hp 289 to be available in June of 1964 (first picture attached). Sometime between then and the 1965 Brochure that was printed in April of 1965, the "Challenger V8's" appeared ; 200 hp 289, 225 hp 289 and 271 hp (HiPo) 289, all noted as "289 Challenger V8's" (second picture). Then, in 1966, the 200 hp and 225 hp 289's were still noted as "Challenger V8's", but the 271 hp 289 was now called a "Cobra V8" (third picture). These same designations continued in 1967 (fourth picture). For 1968, the only remaining 289 was the 2 bbl carburetor 195 hp (down from the previous 200 hp) "Challenger V8". Replacing the other 289's were the "302 (five-liter)", 4 bbl 230 hp V8, the "390 Thunderbird V8", 2 bbl, 280 hp , and the 390 "Thunderbird Special V8" , 4 bbl, 325 hp (carried over from 1967 but with 5 more hp). Gone, of course, was the HiPo 289 (fifth picture). Then in 1969, gone are all 289's.
With more digging into my resources I could probably have narrowed the dates down a little "tighter", but I figured that this was good enough to describe the evolution and disappearance of the Ford "Challenger V8's".
Bob
