In the annals of high-performance engines, the Corvette Z06’s LS7 will be remembered as a benchmark in naturally aspirated power. It will also go down as one of the most popular LS crate engines ever offered, with 505 horsepower and 470 lb-ft of torque.
Within its classic 427-cu.-in. displacement, engineers extracted big-block grunt from its high-revving small-block package. It features a unique big-bore cylinder block that is anchored with a forged crankshaft, featherweight titanium connecting rods, and friction-coated pistons. But it’s the airflow capability of the cavernous CNC-ported heads that enables its tremendous power. Large-volume, straight-passage intake runners channel air directly through the 2.20-inch titanium intake valves.
Chevrolet Performance's LS7 7.0L crate engine package includes a production-style engine with the dry-sump oil pan. You’ll need to supply the external oil supply and oil lines to the engine, but the rest of the assembly is fully dressed, including the manifold assembly with injectors and electronically controlled throttle body and log-style exhaust manifolds. Use our LS7 controller kit (P/N 19258553) to get it running in your project vehicle.
Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles. Connect and Cruise packages are available for a wide variety of crate engines which can be paired with an automatic or manual transmission.
Part Number: 19329246
Engine Type: LS-Series Small-Block V-8
Displacement (cu. in.): 427 (7.0L)
Bore x Stroke (in.): 4.125 x 4.000 (104.8 x 101.6mm)
Block (P/N 12602689): Cast-aluminum with six-bolt steel main bearing caps
Crankshaft (P/N 12641692): Forged steel
Connecting Rods (P/N 12586258): Forged titanium
Pistons: Hypereutectic aluminum
Camshaft Type (P/N 12638426): Hydraulic roller
Camshaft Lift (in.): .591 intake / .591 exhaust
Camshaft Duration (@.050 in.): 211° intake / 230° exhaust
Cylinder Heads (P/N 12578449): CNC ported LS7-style ports; 70-cc CNC combustion chambers
Valve size (in.): 2.200 titanium intake / 1.610 sodium-filled exhaust
Compression Ratio: 11.0:1
Rocker Arms: Investment-cast, roller trunnion
Rocker Arm Ratio: 1.8:1 (offset, intake only)
Recommended Fuel: 91 octane
Maximum rpm: 7000
Reluctor Wheel: 58X
Find everything from the vital data about your engine’s capabilities to how to install it into your build.
Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.
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