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Rumor: C7 Corvette To Get 440 HP, 5.5-Liter Version Of Next-Gen Small Block V-8

 
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2013 Chevrolet Corvette (C7) rendering

As we've known for a while now, General Motors is working on the next generation of its small-block V-8 engine family. A new report out today details some of the features of the upcoming powerplant, including its application in the next-gen C7 Corvette.

In the Corvette, the new engine is expected to displace 5.5 liters, generate about 440 horsepower, and deliver even better fuel efficiency than the current 430-horsepower (436 horses with the optional dual-mode exhaust) 6.2-liter LS3's 16/26 mpg city/highway rating.

A lot of people have the notion that GM's Gen IV LS V-8 engines are archaic, inefficient relics. That may be the logical conclusion if all you think of is their pushrod/overhead valve layout, two valves per cylinder, conventional fuel injection, and--the import four-cylinder fanboy's favorite metric--horsepower per liter. But if you consider the largely aluminum construction, the wide variety of applications, and the advanced materials, design, and huge 505-horsepower output of the 7.0-liter LS7 found the Corvette Z06 (let alone the LS9 of the ZR1), things swing the otherway. But whatever side you're on, there's something new to look forward to.

As GM has stated previously, the new small block family will feature direct injection, E85 capability, and will be designed from the outset to meet the tighter and tighter fuel regulations expected over the next decade. All of this is the result of an $890-million investment in keeping the V-8 engine relevant as regulations and market pressures move toward smaller-displacement, lower cylinder count engines. Despite the re-engineering of the engine, it's expected to retain the pushrod, OHV layout to keep weight, size, and manufacturing costs down.

[GM, Motor Trend]



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Comments (9)
  1. Sounds like a great engine, it should be interesting to see when it comes out, plus I love OHV engines
     
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  2. Seriously, how do you Americans get so little horsepower from such a large engine? In Europe, we get near that amount from a 4-cylinder.
     
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  3. With how many turbos? Eh? Exactly.
     
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  4. In addition to horsepower, the Chevy V8 engines have an impressive torque curve making them a joy to drive in any situation as opposed to some high-horsepower engines that are more suited for the track.
     
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  5. @ James, Can you name one 4-cylinder, mass production car that can achieve that???
     
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  6. @James LOL ur an idiot. No 4 banger makes 500hp. Only thing close is TURBOCHARGED which is more like having two extra cylinders. And the MPG's on an evo or STI? Horrible! Worse than a Z06 for damn sure. Plus thats not eurotrash unreliability either, thats quality Japanese technology.
     
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  7. Let me explain the math to "James". When a car is boosted via a turbocharger or supercharger, this effectively raises the compression ratio and thus artificially adds cubic inches. So, say we boost a 200ci engine to 14.7psi (or 1 atm), then you are effectively doubling the ci, or in reality it is like having a naturally aspirated 400ci engine, as you are forcing twice the amount of air and fuel into the combustion chamber.
     
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  8. HP is NOT everything... Torque is what small engines do not have...Torque + Torque...Effortless riding...
     
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  9. That's the ugliest thing I've ever seen. All of these so called "C7" models I've seen are hideous.
     
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