1974 Pontiac 400 Engine Specs
Engine Configuration
The 1974 Pontiac 400 engine was a V8 engine that belonged to the Pontiac V8 family. It had a displacement of 400 cubic inches or 6.6 liters. This engine was widely used in various Pontiac models during the 1970s, including the Firebird, Grand Prix, and GTO.
Engine Oil Specs & Service Intervals
Proper engine oil specifications and regular service intervals are crucial for maintaining the performance and longevity of the 1974 Pontiac 400 engine. Here are the recommended oil specifications and service intervals:
Oil Specifications
To ensure optimal engine performance, it is important to use the correct type of engine oil. For the 1974 Pontiac 400 engine, it is recommended to use high-quality engine oil with the following specifications:
– Oil Type: SAE 10W-30 or SAE 10W-40
– API Service Classification: SG or higher
– Oil Capacity: Approximately 5 quarts (including the oil filter)
Using the recommended oil type and meeting the API service classification will provide the necessary lubrication and protection for the engine components.
Service Intervals
Regular maintenance and oil changes are essential for the proper functioning of the 1974 Pontiac 400 engine. Here are the recommended service intervals:
1. Oil Change: It is recommended to change the engine oil and oil filter every 3,000 miles or every 3 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 crucial to replace the oil filter. A new oil filter ensures that the engine oil remains clean and free from debris.
3. Inspection: During each oil change, it is advisable to inspect the engine for any signs of leaks, unusual noises, or other issues. This allows for early detection of potential problems and ensures timely repairs.
Detailed Engine Specifications
| Engine Specifications | Values |
|---|---|
| Engine Type | V8 |
| Displacement | 400 cubic inches (6.6 liters) |
| Compression Ratio | 8.2:1 |
| Max Power | 225 horsepower @ 4,000 rpm |
| Max Torque | 325 lb-ft @ 2,400 rpm |
| Fuel System | 4-barrel carburetor |
| Firing Order | 1-8-4-3-6-5-7-2 |
| Valvetrain | OHV (Overhead Valve) |
The 1974 Pontiac 400 engine was a powerful V8 engine that provided impressive performance for its time. With its 400 cubic inches of displacement, it delivered a maximum power of 225 horsepower at 4,000 rpm and a torque of 325 lb-ft at 2,400 rpm. The engine featured a 4-barrel carburetor and an OHV (Overhead Valve) valvetrain.
Regular maintenance, including oil changes and inspections, is vital to keep the 1974 Pontiac 400 engine running smoothly. By following the recommended oil specifications and service intervals, owners can ensure the longevity and optimal performance of this legendary engine.
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