1973 Pontiac 400 Engine Specs
The 1973 Pontiac 400 engine is a legendary powerhouse that was known for its impressive performance and durability. In this article, we will delve into the engine specifications, configuration, and oil service intervals of this iconic engine.
Engine Configuration
The 1973 Pontiac 400 engine is a V8 engine with a displacement of 6.6 liters. It features a cast-iron block and cylinder heads, providing excellent strength and heat dissipation. The engine has a bore of 4.12 inches and a stroke of 3.75 inches, resulting in a compression ratio of 8.2:1.
Equipped with a four-barrel carburetor, the 1973 Pontiac 400 engine delivers an impressive output of 225 horsepower and 345 lb-ft of torque. This power is transmitted to the rear wheels through a three-speed automatic transmission, providing exhilarating acceleration and a thrilling driving experience.
Engine Oil Specs & Service Intervals
Proper maintenance is crucial to ensure the longevity and optimal performance of the 1973 Pontiac 400 engine. Here are the engine oil specifications and service intervals to keep your engine running smoothly:
| Engine Oil | Specification |
|---|---|
| Type | SAE 10W-30 |
| Capacity (with filter) | 5 quarts |
| Capacity (without filter) | 4.5 quarts |
It is recommended to change the engine oil and filter every 3,000 miles or every three months, whichever comes first. Regular oil changes help maintain proper lubrication, prevent engine wear, and optimize performance.
Additionally, it is essential to check the engine oil level regularly and top it up if necessary. Low oil levels can lead to engine damage and decreased performance.
When performing an oil change, it is also advisable to inspect the engine for any signs of leaks or abnormal wear. Addressing these issues promptly can prevent further damage and ensure the engine’s longevity.
Detailed Engine Specifications
| Engine Specifications | Value |
|---|---|
| Engine Type | V8 |
| Displacement | 6.6 liters |
| Block Material | Cast Iron |
| Cylinder Head Material | Cast Iron |
| Bore | 4.12 inches |
| Stroke | 3.75 inches |
| Compression Ratio | 8.2:1 |
| Horsepower | 225 hp |
| Torque | 345 lb-ft |
| Carburetor | Four-barrel |
The 1973 Pontiac 400 engine is a true marvel of engineering, combining power, reliability, and performance. With regular maintenance and adherence to the recommended oil service intervals, this engine can continue to deliver an exhilarating driving experience for years to come.
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