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Vehicle Info NeededLSX454 454ci Engine
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![Break-In Oil, 10W30 [1 Quart, 32 oz.]](https://www.jegs.com/images/mini_200/500/555/555-28067.jpg)
K&N
Part Number : 599-60-1280
INSTALLATION NOTES:
- Assembly does not include any electronics
- Intended for pre-1976 street vehicles or any off-road vehicle
- Not intended for marine applications
- Requires LSX Ignition Controller (p/n 809-19171130) when using a carburetor
- Requires the purchase and installation of an oil pan (dust shield installed for shipment)
- LSX 8-bolt crank flange
- Requires premium fuel
Engine Break-In Procedure
Use only engine oil that meets dexos1 specifications. For track events or competitive driving, use Mobil 1 15W-50 engine oil. Fill the engine with oil and follow the proper engine priming procedure. Also check and fill as required any other necessary fluids such as coolant, power steering fluid, etc.
Start the engine and listen for any unusual noises. If no unusual noises are noted, run the engine at approximately 1000 RPM until normal operating temperature is reached. The engine should be driven at varying loads and conditions for the first 30 miles or one hour without wide open throttle (WOT) or sustained high RPM accelerations. Run five or six medium throttle (50%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear. Run two or three hard throttle (WOT 100%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear.
Change the engine oil and filter. Inspect the oil and the oil filter for any foreign particles to ensure that the engine is functioning properly. Drive the next 500 miles (12 to 15 engine hours) under normal conditions. Do not run the engine at its maximum rated engine speed. Also, do not expose the engine to extended periods of high load. Change the oil and filter again, inspect the oil and oil filter for any foreign particles to ensure that the engine is functioning properly.
809-19417357 supersedes 809-19355573
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
An LSX with Big-Block Power!
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With the LSX Bowtie block, Chevrolet has built a 21st century 454 with the latest technology. It's lighter and more compact than an original Big-Block 454 - while delivering Big-Block output of 627 hp and 586 lb.-ft. - but requires no more space under the hood than a production LS engine. The LSX454 is filled with an all-forged, super-tough rotating assembly and features a pair of our deep-breathing LSX six-bolt cylinder heads. It also comes dressed with great-looking, orange powder-coated valve covers with engraved ''LSX454'' logos.
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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.
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