Cadillac 1937 LaSalle VVI Information page 65

into a straight eight engine. In the Cadillac type V-8,
water enters the right hand cylinder block under high pres-
sure and half is by-passed to the left hand block. Cool
water is thus introduced at the front of the right hand block
and at the center of the left hand block so that the maximum
distance which the cooling water must travel is far less than
in a straight eight engine. The variation in temperature
throughout the engine is thus about half of that in a straight
eight engine. In straight eights the water enters the block
at the front and travels the full length of the engine before
cooling the rear cylinders. This results in hotter running rear
cylinders and causes uneven cylinder temperatures as the
water naturally becomes hotter and loses its cooling capacity
as it passes each of the eight-in-line cylinders.
Another great advantage in cooling over straight eight
design arises from the fact that a V-type engine permits a
greater water cooling area around the cylinders and valves.
Because of the great length of a straight eight engine,
which must be fitted into a limited space, the water areas
must be restricted in size and cooling efficiency is lost.
The highly efficient cooling system of the Cadillac type
V-8 improves operating efficiency, reduces oil consumption
and avoids warping of cylinder bores and valve seats caused
by overheating. Only V-type design lends itself to such effi-
ciency in cooling system design.
V-8 Better Lubricated
Lubrication of the moving engine parts is also more effi-
ciently accomplished in V-type eights than in straight eights
because of the basic advantages of its design.
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