With its classic 427-cubic-inch displacement and racing-derived features, including featherweight titanium connecting rods, the 505-hp LS7 7.0L made its mark in the C6 Corvette Z06 and advanced its legacy in the fifth-generation Camaro Z/28.

Chevrolet Performance’s powerful LS7 crate engine is based on the production specifications of the Gen 5 Z/28 application, including unique Tri-Y exhaust manifolds, which are designed to take advantage of the engine’s firing order to deliver a combination of pulse separation of adjacent firing cylinders and improved scavenging – all for optimal performance.

The LS7 is hand-assembled at the Performance Build Center at GM’s Bowling Green, Ky., assembly plant. It uses a unique cylinder block casting with pressed-in steel cylinder liners to accommodate the engine’s large, 4.125-inch cylinder bores – with deck-plate boring and honing for optimized bore geometry. The bottom end is complemented by high-flow, CNC-ported heads featuring large-volume, straight-passage intake runners and 2.20-inch titanium intake valves.

Our crate engine package includes a dry-sump oil pan. Builders will need to supply the external oil tank and oil lines to the engine, but the rest of the assembly is fully dressed.


Power: 505 HP @ 6300 RPM, 470 ft. lbs. of torque @ 4800 RPM
Displacement: 427 CID, 7.0L
Bore x Stroke: 4.125” x 4.000”
Compression Ratio: 11:1
Recommended Fuel: 92 Octane
Block: Cast Aluminum with 6 bolt cross bolted main caps
Crankshaft: Forged Steel with 6-Bolt Flange
Connecting Rods: Forged Titanium
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .593” Intake / .588” exhaust
Cam Duration @ .050”: 211 deg. Intake / 230 deg. Exhaust
Lobe Separation: 122.5
Cylinder Heads: Aluminum CNC LS7 style ports
Combustion Chamber: 70cc
Valves: 2.200” Titanium Intake/ 1.610” Exhaust
Rocker Arms: Cast Roller Trunnion, 1.8:1 Ratio
Balance: Internal
Reluctor: 58X
Maximum GM Recommended RPM: 7000
GM Recommended Torque Converter Stall 3000-3400

Engine Includes:

Ignition Coils, Coil Harness, Plug Wires and Spark Plugs
OE Production Corvette dry sump oil pan
Exhaust Manifolds
Injectors and DBW Throttle Body
14” Manual Trans Flywheel
Harmonic Balancer Pulley
Aluminum Water Pump
Sensors, Oil, Temp, Knock, Cam & Crank
Oil Filter
Passenger Side RH Oil Dipstick and Tube

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Chevy LS 427 505HP Crate Engine 19329246

Product Information

  • $10,900.00

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