Add on other trinkets like a Procharger F1-R Supercharger, a 750 cfm carburetor, modified Chevrolet main seals and vales fitted to run on Ford hardware, and a healthy ten psi of boost pressure ...

The flathead heads on the big-block cover each "V" of the V-8, and the requisite MP112 supercharger sits center stage, topped by a Holley 390-cfm carburetor.

Modified 1951 Ford F-1 Pickup Truck Flexes 239 Flathead V8 Muscle Published: 27 Feb 2021, 18:22 UTC • By: Mircea Panait 23 photos ...

For context, the first 3.6-liter Flathead V8 made only 65 hp, with a compression ratio of 5.5:1. Even the last 1953 3.9-liter unit, had a modest compression ratio of 7.2:1 and produced 110 hp.

Taking a flathead block from its stock 3.1875 bore all the way out to this 3.3125 diameter represents a 0.125 overbore—virtually unheard of for most modern, postwar OHV engine types.

Flathead devotees could order centrifugal superchargers from McCulloch and Italian-made Roots-type blowers from Italmecanicca, later S.Co.T (Supercharger Company of Turin (Torino)).