In the history of car engines, it’s impossible to overstate the significance of the V8 design. By dividing the eight cylinders into two banks of 4, designers achieved an effective, yet lightweight unit that may fit into nearly all engine bays also sized to fit four or 6-cylinder engines.
Ford did not create the V8 motor, nevertheless it can be relatively stated that they introduced it into everyday use. Some Western marques and Cadillac had V8 engines decades before Ford created the motor that could yield inexpensive performance and make the foundation for hot rodding.
Initially Generation – 1932-1938
The initial from the Ford L-head (flathead) V8 engines left the factory on Mar 9, 1932. This motor used a 90-level obstruct, with the valves found near the pistons, directed up-wards. The heads are not really flat, having four spade-shaped combustion chambers to accommodate the movement of the valves. The gear-driven camera was found in the motor obstruct above the crankshaft and between the cylinder banks, driving strong lifters that acted entirely on the valves. There were two drinking water pumping systems – one for each and every cylinder head.
The piston bore was 3.0625 inches, as well as the crank gave a stroke of three.750 inches, for any total displacement of 221 cubic in .. Pressure with stock heads was actually a conservative 5.5:1, which yielded 65 hp at 3,400 RPM.
Stock induction on the new flathead V8 was by way of a solitary throat downdraft carburetor plus an aluminum consumption manifold that sat between the banks of cylinders. A normal stock 65-horsepower Flathead V8 ought to produce energy economy at about 20 Miles per gallon.
This engine can be recognized in the field by keeping track of the tube head studs, in which you can find 21 per side. Later enhancements reduced the amount of studs to 17.
The flathead V8 was very much under improvement during the early many years, and alterations came annually. Early 1932 Model 18 engines experienced a good reputation for using oil, porous castings, and cooling problems. In 1933, a change to aluminum heads elevated the horsepower rating to 75 for that Model 40. Cooling was revised and enhanced.
1934 saw the arrival of a two-barrel Stromberg carburetor, raising output to 85 horsepower in the Design 40A. A cast metal crankshaft improved dependability. This is the generation in the V8 notoriously recognized by bank robber Clyde Barrow inside a letter to Henry Ford.
For 1935, the Model 38 obtained an updated camshaft. With this point, over 2 thousand Ford flathead V8 motors was produced for Ford automobiles and vehicles, as well as for industrial utilization in other vehicles. By 1936, the motor was referred to as a Design 68 and creation passed the 3 thousand tag.
Within the 1937 model calendar year, the Ford V8 buyer was offered a choice of aluminum or cast iron heads on the Design 78 motor. The cast iron heads offered a higher compression ratio of 7.5:1 and ended in 94 hp in comparison to 6.2:1 and 85 hp with aluminium heads.
Also in 1937, Ford presented smaller 136 cubic ” Design 74 motor, rated at 60 horsepower and 94 pound-feet of torque. This engine became referred to as V8-60, and can be identified by the 17 head studs. This motor became popular in racing as well as for general use since it supplied much better energy economic climate compared to the bigger engine. 1938 saw ongoing manufacture of the V8-85 and the V8-60.
Second Era – 1939-1942
For 1939, Mercury additional a new variant of the Ford flathead V8 style. The newest motor was bigger, displacing 239.4 cubic inches by virtue of a for a longer time 3.1875-” stroke. With a carry compression ratio of 6.3:1, the brand new Design 99A provided 95 horsepower. V8 production approved the 6 thousand unit tag throughout this calendar year.
Both 239 and 221 cubic ” engines switched to your 24-stud head bolt design for 1939, which makes them aesthetically distinct from motors made before this time around. Production continued in 1940 and 1941 with couple of changes. Mercury buyers wwmlyd the 239, and Ford buyers got the V8-85.
By the starting of 1942, America had entered the Second World Battle, and incredibly few civilian vehicles of the kind had been produced before Ford transitioned all its facilities for the battle work. Obviously, many motors including V8s had been produced through the battle to energy various military automobiles, but additional improvement basically ceased up until the finish of the battle.
The period right after the war was a growth time for automakers as pent-up need for new vehicles was satisfied. Nevertheless, automakers simply cranked up manufacture of 1942 styles until new cars could be developed. Ford abandoned the V8-85, giving all Ford and Mercury automobiles the 239 cubic ” motor, now compressing at 6.8:1 and rated at 100 horsepower.