Chevrolet Performance 7.0L 427 C.I.D. LS7 Long Block Crate Engines 19303238

This new Chevrolet Performance LS7 long block (part 19303238) brings the 7.0L, 427 cubic inch engine from the Corvette Z06 to your build, with CNC-ported aluminum cylinder heads, a hydraulic roller camshaft, and an 11.0:1 compression ratio engineered for high-rpm durability.

What comes with the long block

Both block and cylinder heads are cast aluminum for weight savings, and the harmonic balancer, timing cover, and valve covers are already fitted, along with the oil pan. Fuel injection, ignition, and exhaust are entirely on you: no intake, throttle body, flywheel, water pump, harness, or ECU ships with it, so plan a compatible high-performance EFI system before you buy.

Where this engine was designed to go

Chevrolet Performance built this as a stock replacement for 2006-2011 Corvette Z06 models carrying the RPO code LS7, though it also sees use in LS swaps into classic muscle cars, resto-mods, and pro-touring builds that can support its 11.0:1 compression with premium fuel at 91 octane or higher. It is not designed or intended for marine applications.

Before you order

Does it include an ECU or wiring harness? No, both are excluded and must be sourced to match your fuel injection setup. Is coverage the same everywhere? This listing notes that engines placed in vehicles titled and driven outside the United States are not covered. Can I run it in something other than a Corvette? Yes, this LS7 sees frequent use in LS swaps outside the Z06 as long as the recipient vehicle can support its compression and fuel requirements.

Specifications