Cadillac 331 Engine Specs

Engine Configuration

The Cadillac 331 engine, also known as the Cadillac V8, was a popular engine produced by Cadillac from 1949 to 1955. It was the first V8 engine produced by Cadillac after World War II and played a significant role in establishing Cadillac as a luxury car brand. Let’s take a closer look at the engine configuration of the Cadillac 331.

The Cadillac 331 engine was a V8 engine with a displacement of 331 cubic inches, or 5.4 liters. It featured an overhead valve (OHV) design, which was a significant advancement in engine technology at the time. The OHV design allowed for better airflow and combustion efficiency, resulting in improved performance and fuel economy.

The engine had a bore of 3.80 inches and a stroke of 3.63 inches, giving it a relatively square configuration. This configuration contributed to the engine’s smooth operation and balanced power delivery. The compression ratio of the Cadillac 331 engine was 8.5:1, which was considered high for its time and contributed to its impressive power output.

Engine Oil Specs & Service Intervals

Proper maintenance and regular oil changes are crucial for the longevity and performance of any engine, including the Cadillac 331. Here are the engine oil specifications and recommended service intervals for the Cadillac 331 engine.

The Cadillac 331 engine requires a high-quality engine oil with a viscosity of SAE 30 or SAE 40, depending on the operating conditions. It is important to choose an oil that meets the API (American Petroleum Institute) classification of SF or SG. These classifications ensure that the oil provides adequate protection and lubrication for the engine.

As for the service intervals, it is recommended to change the engine oil and oil filter every 3,000 miles or every three months, whichever comes first. Regular oil changes help remove contaminants and maintain optimal engine performance. Additionally, it is important to check the oil level regularly and top it up if necessary.

Engine Specifications Value
Engine Type V8
Displacement 331 cubic inches (5.4 liters)
Configuration Overhead Valve (OHV)
Bore 3.80 inches
Stroke 3.63 inches
Compression Ratio 8.5:1

Summary

The Cadillac 331 engine was a groundbreaking V8 engine that played a significant role in establishing Cadillac as a luxury car brand. Its overhead valve design and square configuration contributed to its smooth operation and balanced power delivery. When it comes to engine oil, using a high-quality oil with the recommended viscosity and API classification is crucial. Regular oil changes every 3,000 miles or three months help maintain optimal engine performance. By following these specifications and service intervals, Cadillac 331 owners can ensure their engines perform at their best for years to come.

Categories: 5.4Cadillac

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