1985 Chevy Truck 350 Engine Specs
The 1985 Chevy Truck 350 engine is a classic powerhouse that has stood the test of time. Known for its durability and reliability, this engine has become a favorite among truck enthusiasts. In this article, we will delve into the engine configuration, engine oil specifications, and service intervals for this iconic engine.
Engine Configuration
The 1985 Chevy Truck 350 engine is a V8 engine with a displacement of 5.7 liters. It features an overhead valve (OHV) design, which means that the valves are located in the engine block, rather than in the cylinder head. This configuration allows for a more compact design and better heat dissipation.
The engine has a bore and stroke of 4.00 inches by 3.48 inches, resulting in a compression ratio of 8.6:1. It is equipped with a cast iron block and cylinder heads, providing excellent durability and heat resistance. The 1985 Chevy Truck 350 engine also features a hydraulic roller camshaft, which improves performance and reduces maintenance requirements.
Engine Oil Specs & Service Intervals
Proper engine oil specifications and regular maintenance are crucial for the longevity and performance of the 1985 Chevy Truck 350 engine. Here are the recommended engine oil specs and service intervals for this engine:
Engine Oil Specifications:
– Oil Type: The 1985 Chevy Truck 350 engine requires a high-quality, multi-viscosity engine oil with a viscosity grade of 10W-30 or 10W-40. This ensures proper lubrication and protection under various operating conditions.
– Oil Capacity: The engine has an oil capacity of approximately 5 quarts, including the oil filter.
Service Intervals:
– Oil Change Interval: 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 maintain optimal engine performance.
– Oil Filter Replacement: The oil filter should be replaced during every oil change to ensure proper filtration and prevent debris from circulating in the engine.
To perform an oil change on the 1985 Chevy Truck 350 engine, follow these steps:
1. Park the truck on a level surface and engage the parking brake.
2. Locate the oil drain plug underneath the engine and place a drain pan beneath it.
3. Unscrew the oil drain plug using a wrench or socket, allowing the old oil to drain completely.
4. Once the oil has drained, reinstall the oil drain plug and tighten it to the manufacturer’s specifications.
5. Locate the oil filter, which is typically located on the side of the engine.
6. Use an oil filter wrench to remove the old oil filter. Be cautious of any remaining oil that may spill.
7. Before installing the new oil filter, apply a thin layer of fresh oil to the rubber gasket to ensure a proper seal.
8. Screw on the new oil filter by hand until it is snug, and then tighten it an additional 3/4 turn.
9. Finally, refill the engine with the recommended amount of new engine oil, using a funnel to avoid spills.
10. Start the engine and let it run for a few minutes to circulate the new oil. Check for any leaks around the oil filter and drain plug.
11. Turn off the engine and check the oil level using the dipstick. Add more oil if necessary, but be careful not to overfill.
By following these engine oil specifications and service intervals, you can keep your 1985 Chevy Truck 350 engine running smoothly and efficiently. Regular maintenance is key to ensuring the longevity of this iconic engine and enjoying its impressive performance for years to come.
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