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Chevrolet Corvette ZR1 LS9 Engine Specifications - Domestic Exotica
 The last step in the assembly...  The last step in the assembly is weighing the engine. Because the LS9 doesn't have a dipstick, the oil is later added by weight, making it important to know what the engine weighs dry-529.8 pounds in this case. |  Each assembled engine is first...  Each assembled engine is first run on natural gas so it can be externally balanced. After that it's put though a 45-minute cold test run by a DC motor. When the engines are complete, they are double checked and sent offsite for a 20-minute hot test and dyno validation. It takes from 4.5 to 5 hours to build an LS9 at Wixom, which means it can churn out around 45 units a week. We'd all like to see LS9s available as crate engines, but for now, every one is bound for a ZR1-and there's no shortage of willing buyers. |  |
| LS9 SPECS | | Displacement | 376 ci | | Bore and stroke | 4.06 x 3.62 inches | | Block material | Cast aluminum | | Head material | A356-T6 rotacast aluminum | | Valvetrain | Overhead valve, 2.16-inch titanium intake, and 1.59 inch hollow-stem, sodium-filled exhaust | | Fuel delivery | SFI (sequential fuel injection) | | Compression ratio | 9.1:1 | | Horsepower | 638 @ 6,500 rpm | | Torque | 604 lb-ft @ 3,800 rpm | | Fuel | Premium required | | Exhaust manifolds | Stainless steel | | Crankshaft | Forged steel | | CAMSHAFT | | Type | Hydraulic roller | | Lift | 0.562/0.558-inch intake/exhaust | | Duration at 0.050 | 211/230 degrees intake/exhaust | | Supercharger | Eaton R2300 four-lobe Roots-style displacing 2.3 liters | | Boost | 10.5 psi maximum |
Chevrolet Corvette Research
Review in-depth reviews on the new Chevrolet Corvette, featuring test drives, comparisons, options, features and more. The 2010 Corvette is equipped with a V8 engine, generating 430 horsepower, and it has drivers side crash test ratings of 8 stars and passengers side crash test ratings of 8 stars.
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