1938 LaSalle Production - GM Heritage Center

is essential to prevent piston-to-bore wear in a cold
engine. It is another exclusive feature only obtainable
with V-type design.
Each piston, connecting rod, bearing and wrist pin assembly
is balanced to closest precision limits of ^$2 of
an ounce for perfect running balance and engine
smoothness.
Crankshaft
The crankshaft is a high carbon steel forging and
weighs ninety pounds. It is carefully balanced on a
special machine to His ounce-inch limit and again
balanced after flywheel and clutch are attached to
ounce-inch limit.
Short, Rugged Crankshaft
The extreme 27 inch shortness, possible only in
V-type design, eliminates tendencies to whip or vibrate
which cannot be avoided in long straight eight
crankshafts.
Large diameter bearing journals and inch overlap
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