1977-02-01

Pontiac's New 2.5 Litre 4 Cylinder Engine 770819

Pontiac has designed a new 2.5 Litre four-cylinder engine which overcomes many of the current objections to this type of engine. The engine is smooth, quiet, powerful, durable, and fuel efficient. In addition, it has excellent driveability.The approaches used to achieve this situation included a review of the components which create the vertical secondary shake force in light of the mathematics involved, a unique intake manifold design, and parasitic power consumption control in several engine areas.

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