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LS7 Chevrolet Performance 7.0L 427 C.I Crate Engine Long Block

  • Product Code: 19329246
  • Dispatch Time: 40

£9,995.00 EX VAT

£11,994.00 INC VAT

Product Overview:

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.


This Product is a USA Special Order, and will take around 6 - 8 weeks to arrive, call to discuss options

Product Details

In the annals of high performance engines, Chevrolet Performance LS7 7.0L long block crate engines will be remembered as a benchmark in naturally aspirated power, with 505 hp and 470 lbs.-ft. of torque. Within their classic 427 cu. in. displacement, engineers extracted big block grunt from their high-revving small block package. They feature a unique, big-bore cylinder block that's 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 this tremendous amount of power. Large-volume, straight-passage intake runners channel air directly through 2.20 in. titanium intake valves. Chevrolet Performance's LS7 7.0L long block crate engine packages include 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. Chevy Performance recommends their LS7 controller kit to get your new LS7 up and running in your project vehicle.


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: 91 Octane
Block: Cast Aluminum with 6 bolt cross bolted main caps
Crankshaft: Forged Steel
Connecting Rods: Forged Titanium
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .591” Intake / .591” exhaust
Cam Duration @ .050”: 211 deg. Intake / 230 deg. Exhaust
Lobe Separation: 121 Degree
Cylinder Heads: CNC Ported Aluminum LS7 style ports
Combustion Chamber: 70cc
Valves: 2.200” Intake/ 1.610” Exhaust
Rocker Arms: Cast Roller Trunnion, 1.8:1 Ratio
Balance: Internal
Reluctor: 58X
Maximum GM Recommended RPM: 7000

Engine Includes:
• Fully GM assembled long block
• Ignition Coils, Plug Wires and Spark Plugs
• Dry Sump Z/28 oil pan
• Z/28 exhaust Manifolds
• Intake, Injectors and Throttle Body
• 14” Z/28 Flywheel
• Harmonic Balancer
• Front timing cover
• Aluminum Water Pump
• Oil Filter

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