LS Gen III 6.0L Crate Engine Kit

The Chevrolet Performance LS long block is a high-performance solution for enthusiasts seeking a powerful upgrade or a robust foundation for custom builds. Engineered with proven Gen III and Gen IV small-block technology, introduced by General Motors in 1997 with the all-aluminum ...The Chevrolet Performance LS long block is a high-performance solution for enthusiasts seeking a powerful upgrade or a robust foundation for custom builds. Engineered with proven Gen III and Gen IV small-block technology, introduced by General Motors in 1997 with the all-aluminum LS1 in the C5 Corvette, this long block delivers exceptional horsepower and a broad torque band.

Ideal for retrofitting older LS-equipped vehicles (1997–2006 Gen III small-block V8s) or powering new projects, it features a 24X crankshaft trigger and 1X camshaft trigger system for seamless integration with existing sensors, exhaust systems, and engine mounts. The advanced design incorporates high-flow rectangular cylinder head intake ports from Gen IV LS3 engines, outperforming earlier Gen III intake ports, and supports fuel injection with the flexibility to reuse existing induction components or custom configurations (requires a Gen IV 6.0-6.2L intake manifold). Enhance your LS engine with premium components designed for performance, reliability, and style.

The FiTech 70014 Ultimate LS EFI kit is tailored for DIY enthusiasts, offering full control over engine and transmission tuning for LS3 and 6.2L L92 engines with rectangular port cylinder heads, supporting up to 750 HP. It includes a fabricated sheet metal intake manifold with short runners, a 102mm billet throttle body, 55 lb/hr fuel injectors, a color touchscreen handheld controller with data logging, a self-learning ECU, wiring harness, wideband O2 sensors, and GM transmission control (4L60E, 4L65E, 4L80E, 4L85E). The Deluxe AN6 LS Swap Fuel Filter Regulator, with an integrated 58psi regulator and 5-micron filter, supports up to 450 HP naturally aspirated, featuring AN6 fittings for direct connection, eliminating adapters, and reducing return line length.

Earl’s Vapor Guard hose and hose ends (3/8", 225 psi, black) combat modern fuel degradation with a multi-layer design for durability and leak-free performance. Lightweight aluminum -6 AN to 1/4" pipe adapters ensure precise, leak-proof connections. The MSD in-line fuel pump (43 gph at 60 psi, 3/8" hose barb inlet/outlet) supports up to 500 HP EFI setups with a clog-resistant roller vane mechanism.

These components, backed by trusted engineering from Chevrolet Performance, FiTech, Earl’s, and MSD, deliver unmatched performance and aesthetics for street or strip applications. High-Performance LS Engine: Chevrolet Performance LS long block delivers exceptional horsepower and torque for enthusiasts and custom builders. Versatile Compatibility: Supports 1997–2006 Gen III LS engines, ensuring seamless retrofitting with existing sensors, exhausts, and mounts.

Advanced Engine Management: FiTech 70014 EFI kit offers precise tuning and transmission control for LS3 and 6.2L L92 engines up to 750 HP. Reliable and Stylish De