1969 Buick 350 Engine Specs

The 1969 Buick 350 engine was a powerful and reliable V8 engine that was widely used in various Buick models during that era. This article will provide detailed specifications of the engine, including its configuration, oil specifications, and service intervals.

Engine Configuration

The 1969 Buick 350 engine featured a V8 configuration, meaning it had eight cylinders arranged in a V shape. This configuration provided a balance of power and smooth operation. The engine had a displacement of 350 cubic inches, which is equivalent to 5.7 liters. It had a bore of 3.8 inches and a stroke of 3.85 inches. The compression ratio of the engine was 10.25:1, which contributed to its performance.

Engine Oil Specs

Using the correct engine oil is crucial for maintaining the performance and longevity of the 1969 Buick 350 engine. The engine required a high-quality, multi-viscosity oil with a viscosity grade of SAE 10W-30. This oil provided optimal lubrication and protection for the engine’s components, especially during cold starts. It is important to note that using the recommended oil grade is essential to ensure proper engine function.

Service Intervals

Regular maintenance is key to keeping the 1969 Buick 350 engine running smoothly. Here are the recommended service intervals for various engine components:

1. Oil Change: It is recommended to change the engine oil every 3,000 miles or every three months, whichever comes first. Regular oil changes help remove contaminants and ensure proper lubrication.

2. Oil Filter Replacement: Along with the oil change, it is important to replace the oil filter. This should be done at every oil change to ensure the engine is protected from harmful particles and debris.

3. Spark Plug Replacement: The spark plugs should be replaced every 20,000 miles or as recommended by the manufacturer. This helps maintain proper ignition and fuel efficiency.

4. Air Filter Replacement: The air filter should be replaced every 12,000 miles or as recommended by the manufacturer. A clean air filter ensures proper air flow to the engine, improving performance and fuel efficiency.

5. Coolant Flush: It is recommended to flush and replace the coolant every two years or as specified by the manufacturer. This helps prevent overheating and protects the engine from corrosion.

6. Timing Belt Replacement: The timing belt should be replaced every 60,000 miles or as recommended by the manufacturer. A worn-out timing belt can cause engine damage and should be replaced to avoid costly repairs.

7. Regular Inspections: Regularly inspecting the engine for any leaks, unusual noises, or signs of wear is essential. Addressing any issues promptly can prevent further damage and ensure the engine’s longevity.

Engine Specification Value
Configuration V8
Displacement 350 cubic inches (5.7 liters)
Bore 3.8 inches
Stroke 3.85 inches
Compression Ratio 10.25:1
Oil Viscosity Grade SAE 10W-30

In conclusion, the 1969 Buick 350 engine was a powerful and reliable V8 engine that offered impressive performance. By following the recommended service intervals and using the correct engine oil, owners can ensure the longevity and optimal performance of this classic engine. Regular maintenance and inspections are essential to keep the engine running smoothly and to address any issues promptly.

Categories: 5.7Buick

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