LS7- Tech Specs

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

Balanced: Internal


SKU: 19329246


Price Starting At $16,296.68

Horsepower: 505 HP @ 6300 RPM

LB-FT Torque: 470 LB-FT @ 6300 RPM TORQUE

A living legend with 427 classic cubic inches

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.

 @ $16,296.68

*Images may be stock photos and may not represent the actual part. Part numbers and prices are subject to change without notice



phone: 780-486-3335

fax: 780-486-7357


Western GMC Buick
18325 Stony Plain Rd NW
Edmonton, T5S 1C6

*Images may be stock photos and may not represent the actual part. Part numbers and prices are subject to change without notice

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