
It produced 130hp as opposed to the flatheads final 110hp.īy 1955 Chevrolet introduced its “small block V8” with 265ci, not to be outdone Ford increased its displacement to 272ci and introduced the Thunderbird with a 292ci engine. It came in 239ci (256ci for Mercury), the same displacement as the old flathead V8 but with a bigger bore and a shorter stroke (3.5” X 3.1”). By 1952 Ford had new OHV 6-cylinder engine (215ci I-6) and Lincoln had a 317ci OHV V8.* It wasn’t until 1954 that Ford introduced its new Ford Y-Block V8.

instructed its engineers to develop a new engine for the future.


By 1948 the famous Flathead Ford V8 had been developed about as far as it could go.
