1938 Cadillac V16 - GM Heritage Center

and a rebound cushion. The compression cushion counteracts
downward thrusts of the engine caused by power
forces. The rebound cushion absorbs the reactionary
upward movement of the engine's weight and completely
insulates engine tremors from the frame bracket.
The effect is to allow free movement of the engine
through a limited distance, after which resistance of
the rubber builds up preventing excessive engine motion
in the chassis at high speeds or over rough roads. This
may be compared to the action of a very flexible spring
in combination with a shock absorber, whereas conventional
rubber type cushions correspond to a relatively
stiff spring without shock absorbers.
Enbloc Cylinder and Crankcase
Crankcase and block are cast in one mold from very
hard, specially prepared alloy of steel and iron. The
enbloc casting is then placed in an "equalizing" oven
Rigid Enbloc Cylinder Crankcase
to season the metal by slow cooling to normal temperature.
An extremely rigid, durable engine foundation
is thus secured. Other manufacturers use such
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