1991 Chevy 350 Engine Specs
The 1991 Chevy 350 engine is a classic powerhouse that has been a favorite among car enthusiasts for decades. Known for its durability and performance, this engine has stood the test of time and continues to be a popular choice for many car owners.
Engine Configuration
The 1991 Chevy 350 engine is a V8 engine with a displacement of 5.7 liters. It features a cast iron block and cylinder heads, providing strength and reliability. The engine has an overhead valve (OHV) configuration, meaning that the valves are located in the cylinder block and operated by pushrods and rocker arms.
The 350 engine has a bore of 4.00 inches and a stroke of 3.48 inches, resulting in a total displacement of 350 cubic inches. It has a compression ratio of 9.3:1, which contributes to its power and efficiency.
Engine Oil Specs & Service Intervals
Proper maintenance and regular oil changes are crucial for the longevity and performance of any engine, including the 1991 Chevy 350. Here are the engine oil specifications and recommended service intervals for this engine:
| Engine Oil Type | Recommended Oil Viscosity | Service Interval |
|---|---|---|
| Conventional Oil | 10W-30 | Every 3,000 miles or 3 months |
| Synthetic Blend Oil | 10W-30 | Every 5,000 miles or 6 months |
| Full Synthetic Oil | 5W-30 | Every 7,500 miles or 12 months |
It is important to note that these service intervals are general recommendations and may vary depending on driving conditions and individual vehicle requirements. Always refer to your vehicle’s owner’s manual for the most accurate information.
Detailed Engine Specifications
| Engine Type | V8 |
|---|---|
| Displacement | 5.7 liters |
| Block Material | Cast Iron |
| Cylinder Head Material | Cast Iron |
| Valvetrain | Overhead Valve (OHV) |
| Bore | 4.00 inches |
| Stroke | 3.48 inches |
| Compression Ratio | 9.3:1 |
The 1991 Chevy 350 engine is a reliable and powerful choice for car enthusiasts. With its V8 configuration, cast iron construction, and impressive specifications, it continues to be a popular engine option for various applications. Remember to follow the recommended oil specifications and service intervals to keep your engine running smoothly for years to come.
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