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Chevrolet Performance LS7 7.0L 505HP Engine

Chevrolet Performance
Chevrolet Performance LS7 7.0L 505HP Engine

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A Living Legend with 427 Classic Cubic Inches!

In the history 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. Unlike LS1/LS6 engines, the LS7 uses a siamesed bore cylinder block design which is required for its big 4.125" bores. Competition-proven heads and lightweight components, such as titanium rods and intake valves, make the LS7 a street-tuned racing engine!

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 2.20-inch titanium intake valves.

Chevrolet Performance's LS7 7.0L crate engine package includes a Corvette 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.

LS7 427ci / 7.0L TECH SPECS:
  • Engine Type: LS-Series Gen IV Small-Block V-8
  • Displacement: 427ci (7.0L)
  • Bore x Stroke: 4.125'' x 4.000'' (104.8 x 101.6mm)
  • Block: Cast-aluminum with six-bolt steel main bearing caps
  • Crankshaft: Forged steel
  • Connecting Rods: Forged titanium
  • Pistons: Hypereutectic aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .591'' intake / .591'' exhaust
  • Camshaft Duration (@.050 in.): 211° intake / 230° exhaust
  • Cylinder Heads: CNC ported LS7-style ports; 70-cc CNC combustion chambers
  • Valve Size: 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 (Minimum)
  • Maximum Recommended rpm: 7000
  • Reluctor Wheel: 58X
  • Balanced: Internal
  • JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    GM Warranty

    4 Products
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