How much horsepower does a 1989 Corvette have?
The 1989 Corvette’s 5.7-liter V8 delivers about 245 horsepower (SAE net), with roughly 345 lb-ft of torque. Some literature from the era shows 240 horsepower, reflecting different rating conventions, but Chevrolet’s official specification for the year lists 245 hp.
This article breaks down what those numbers mean for the 1989 Corvette, how horsepower was measured at the time, and where variations in published figures come from.
Engine and horsepower basics
The 1989 Corvette used the 5.7-liter V8 known as the L98. Power output is usually cited as 245 horsepower in SAE net terms, with torque in the mid-300s range (about 340–345 lb-ft). The discrepancy you’ll see in some catalogs—often listed as 240 horsepower—stems from historical variations in how horsepower was tested and published during the late 1980s.
Notes on the list below help clarify the typical figures associated with this model year.
- Engine: 5.7-liter V8 (L98)
- Horsepower: 245 hp SAE net (official Chevrolet spec for 1989)
- Torque: Approximately 340–345 lb-ft
- Alternate figures: Some sources list 240 hp due to different rating standards used at the time
In summary, the primary takeaway is that the 1989 Corvette’s power output is best understood as about 245 hp in SAE net terms, with a comparable level of torque for its class, while other listings may show 240 hp depending on the rating method used by a source.
Context and impact
Understanding the horsepower figure helps place the 1989 Corvette in its era. The L98’s output was competitive for a factory hot-rod in the late 1980s, aligning with contemporaries and contributing to the car’s reputation for strong mid-range torque and solid street performance. Buyers and enthusiasts should keep in mind that the exact number can vary by source due to the shift from gross to net horsepower ratings and the era’s testing standards.
Notes on rating methods
During the 1980s, automakers frequently published different horsepower numbers depending on whether they used gross or net ratings and which testing standard was applied. The Corvette’s 245 hp figure reflects SAE net horsepower, which is the standard most buyers encountered on the showroom floor and in official brochures for the period.
Summary
For a 1989 Corvette, expect about 245 horsepower from the 5.7-liter L98 V8, with torque around 345 lb-ft. Some catalogs list 240 horsepower due to rating method differences of the era. When researching, reference Chevrolet’s official 1989 specifications to confirm the SAE net figure, and remember that real-world performance also depends on condition, gearing, and transmission choice.
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1982 Corvette Collector Edition
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How much horsepower does a 1989 C4 Corvette have?
245 hp
Engines
| Engine | Model Year | Power |
|---|---|---|
| 5.7 L (350 cu in) L98 V8 | 1988–1989 (auto coupes with 3.07 rear) | 245 hp (183 kW) |
| 1988–1989 (B2K Callaway) | 382 hp (285 kW) | |
| 1990–1991 | 245 hp (183 kW) | |
| 1990–1991 (auto coupes with 3.07 rear) | 250 hp (186 kW) |
What's a 1989 Corvette worth?
A 1989 Corvette's value typically ranges from $8,000 to $15,000, depending on condition, mileage, and transmission. Good-condition examples with average specs might be around $11,550, while low-mileage or rare versions, such as a Callaway Twin Turbo, can be significantly more expensive, with some high-end models selling for over $40,000.
Factors affecting value
- Condition: A well-maintained car in excellent condition will have a higher value. The "Original & Highly Original" examples listed on Classic.com are good examples of this.
- Mileage: Lower mileage generally means a higher price.
- Transmission: Automatic versions are typically worth less than manual transmission cars. The 6-speed manual is considered more desirable by enthusiasts.
- Rarity and features: Models like the Callaway Twin Turbo are much rarer and more valuable, with high auction prices. Other sought-after options include the Z51 performance handling package and Selective Ride Control.
- Current market: The market for C4 Corvettes has been stable, making them an affordable entry into Corvette ownership.
Examples of asking prices
- Average to good condition: ~$8,000 to $15,000
- High-end models: Over $40,000 for rare, low-mileage, or modified versions
