Katech Engineering LLC - Custom Spec LS Performance Engines

LS Performance Engines for Street, Strip, and Professional Motorsports

Katech LS engines are custom spec high-performance engines developed around GM Gen III and Gen IV LS architecture. Every LS engine combination is individually specified, engineered, and assembled in-house using race-proven processes, premium rotating assemblies, CNC-machined cylinder heads, application-matched camshaft profiles, and valvetrain systems designed for high RPM stability. These engines are built for serious street performance, road racing, drag racing, and endurance applications where repeatable power and durability under load are essential.

Each LS engine package is engineered as a complete mechanical system. Final specifications are aligned with displacement strategy, compression ratio targets, airflow requirements, fuel type, intended RPM range, and overall power objectives. Oil control strategy, valvetrain geometry, ring package selection, and thermal management considerations are addressed during the specification phase to ensure structural integrity and consistent performance in demanding environments.

For customers searching for LS crate engines or performance crate engines, Katech delivers fully assembled custom spec LS engine packages configured for installation and calibrated for the intended application. These are not mass produced crate engines. Each LS engine reflects a purpose-driven performance specification informed by real-world racing development and validated assembly standards.