Chevrolet Performance delivers the engine without an intake manifold and other accessories. Use LSX-LS7 single plane carbureted intake manifold (p/n 809-19244033). The LSX454 valve covers do not include provisions for mounting ignition coil brackets. Aftermarket or custom relocation brackets must be obtained. It also includes an 8-bolt crankshaft flange that may require an adapter for use with some transmissions.

LSX454 TECH SPECS:

• Engine Type: LSX-Series Gen IV Small-Block V-8
• Displacement: 454ci (7.4L)
• Bore x Stroke: 4.185'' x 4.125'' (106.3mm x 104.8mm)
• Block: LSX cast-iron with six-bolt, cross-bolted main caps
• Crankshaft: 4340 forged steel with 8-bolt flange
• Connecting Rods: 4340 forged steel
• Pistons: Forged aluminum
• Camshaft Type: Hydraulic roller
• Camshaft Lift: .648'' intake / .648'' exhaust
• Camshaft Duration (@.050 in.): 236° intake / 246° exhaust
• Cylinder Heads: Aluminum LSX-LS7 port; with ''as cast'' 70cc chambers
• Valve Size: 2.200'' titanium intake / 1.610'' hollow sodium-filled exhaust
• Compression Ratio: 11.0:1
• Rocker Arms: Investment cast, roller trunnion
• Rocker Arm Ratio: 1.8:1
• Recommended Fuel: Premium pump (92 octane)
• Maximum Recommended RPM: 6500
• 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.

Note: Standard GMPP 24-Month/50,000-Mile Crate Engine Warranty applies

Built for big power and brutal performance, the Chevrolet LSX 454 Crate Engine (454ci/627HP) is the ultimate upgrade for muscle car builds, pro-touring machines, or high-performance street and strip applications. Delivering a staggering 627 horsepower and 586 lb-ft of torque, this all-motor beast offers the raw muscle of a big-block with the modern reliability and efficiency of LS architecture.

The LSX 454 is based on the rugged LSX Bowtie block, engineered for high-horsepower applications with thicker cylinder walls, six-bolt main caps, and reinforced construction. Inside, you'll find a forged steel crankshaft, forged rods, and high-compression pistons—all designed to withstand the demands of serious street and track abuse.

Perfect for builders who want a turnkey powerhouse, this LSX crate engine is assembled by Chevrolet Performance using top-tier components and precision tolerances. Just add your preferred intake, fuel system, and electronics, and you're ready to drop it into your project and unleash pavement-ripping performance.

Looking for a reliable, high-output engine that delivers without the complexity of forced induction? This LSX crate motor delivers naturally aspirated performance that rivals many boosted combinations—making it ideal for enthusiasts who want simplicity, power, and bulletproof construction.

Backed by Chevrolet's legacy of performance and innovation, the LSX 454 is the perfect heart for your next build. When only the best will do, trust in Chevrolet Performance to deliver unmatched horsepower and relentless reliability.