1968 Pontiac GTO 400 Engine Specs
The 1968 Pontiac GTO is an iconic muscle car that left a lasting impression on automotive enthusiasts. One of the key elements that made this car so legendary was its powerful 400 cubic inch V8 engine. Let’s dive into the engine specifications of the 1968 Pontiac GTO 400.
Engine Configuration
The 1968 Pontiac GTO 400 engine featured a V8 configuration, meaning it had eight cylinders arranged in a V-shaped pattern. This design allowed for a more compact engine size while still delivering impressive power.
The engine had a displacement of 400 cubic inches, which is equivalent to 6.6 liters. This large displacement provided the GTO with the necessary muscle to dominate the roads.
Engine Oil Specs & Service Intervals
Proper engine oil specifications and regular service intervals are crucial for maintaining the longevity and performance of any vehicle, including the 1968 Pontiac GTO 400. Here are the recommended engine oil specs and service intervals for this iconic muscle car:
| Engine Oil | Specification |
|---|---|
| Engine Oil Type | SAE 10W-30 |
| Oil Capacity (including filter) | 5 quarts |
| Oil Filter | AC Delco PF25 |
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 ensure proper lubrication, which is essential for the engine’s health.
Detailed Engine Specifications
To provide a comprehensive overview of the 1968 Pontiac GTO 400 engine, here is a detailed breakdown of its specifications:
| Specification | Value |
|---|---|
| Engine Type | V8 |
| Displacement | 400 cubic inches (6.6 liters) |
| Compression Ratio | 10.75:1 |
| Horsepower | 350 hp |
| Torque | 445 lb-ft |
| Carburetor | Quadrajet 4-barrel |
| Ignition System | Points and condenser |
| Valvetrain | OHV (Overhead Valve) |
The 1968 Pontiac GTO 400 engine was a true powerhouse, delivering 350 horsepower and an impressive 445 lb-ft of torque. Its high compression ratio of 10.75:1 ensured excellent performance and exhilarating acceleration.
The engine was equipped with a Quadrajet 4-barrel carburetor, providing optimal fuel delivery for maximum power output. The ignition system relied on points and condenser technology, a common setup during that era.
In conclusion, the 1968 Pontiac GTO 400 engine was a marvel of engineering, delivering impressive power and performance. With its V8 configuration, large displacement, and high compression ratio, it left a lasting legacy in the world of muscle cars. Regular oil changes and adherence to recommended service intervals are essential to keep this legendary engine running smoothly for years to come.
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