Ls 6.2 – 530 HP on 91 Octane

This 6.2L LS-compatible performance engine is built for enthusiasts looking for a high-performance naturally aspirated LS engine with strong street manners, aggressive power, and modern fuel injection control. Built around a high-strength LSX-style cast iron block and designed for 91 octane pump gas, this 376ci combination uses performance aluminum heads, a BTR performance camshaft, and a FAST LSXR 102mm intake manifold.

The LS EFI engine package uses a Holley Terminator X Stealth 4150 EFI system paired with a 102mm throttle body, providing complete electronic fuel and ignition control, including a standalone ECU, wiring harness, and sensors for reliable cold starts, self-learning AFR correction, and consistent performance across different environments and elevations.

Airflow is provided by BluePrint PS8015 aluminum LS3-style cylinder heads with 259cc intake runners and 102cc exhaust runners. Combined with the high-strength 376ci rotating assembly and matched performance components, this engine delivers strong naturally aspirated performance with excellent street usability.

This is a purpose-built 376ci LS EFI crate engine, designed for street performance, LS swaps, and enthusiasts looking for modern EFI control without sacrificing LS performance and reliability.

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 Order to Build: Typical build time is 6–7 weeks, depending on availability. Customers are kept updated throughout the build process. 

• BLOCK: GM OEM 6.0L Iron Block (Bored & Stroked) 
• CONNECTING RODS: Forged 6.125" Connecting Rods
• PISTONS: Forged Dished Pistons 
• CYLINDER HEADS: LS3 AFR 238cc
• INTAKE MANIFOLD: Fast lsxr 102mm or carbon ptr 102mm
• EFI SYSTEM: Holley Terminator X Stealth 4150 EFI System (Complete Harness, Computer & Sensors) 
• SPARK: GM ls3 coils and MSD Street Fire Spark Plug Wires 
• VALVE-TRAIN: LS7 Hydraulic Roller Lifters, Trunnion-Upgrade Rockers, Chromoly 5/16” Pushrods (TSP) 
• OIL SYSTEM: Melling high performance oil pump
• OIL PAN: Holley GM LS Swap oil pan
• HEAD GASKETS: BTR MLS 
• FASTENERS: ARP

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When requesting a quote, you will fill out the configuration page below where you can select available options such as cosmetic finishes, accessory drive setups, and other customization requests. we do not offer transmitions at this time.

Once completed, submit your configuration, and a formal quote will be provided for your LS 6.2 engine build.

From there, your engine will enter the production queue and begin the build process.