$8,644.99
In stock ready to ship
Engines & Transmissions
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SKU c9ce195f846b
Crate Engines$6,945.91
Freight and taxes calculated at checkout
In stock · ready to ship
30 days on used engines, transmissions and ECUs
Commercial use may carry a shorter period than pleasure use.
Warranty termsFreight — heavy / crated — from $599. Ships in 1–3 business days, 3–10 business days in transit.
Freight damage must be noted on the delivery receipt and reported within 48 hours of delivery.
Shipping rates30-day return window · 25% restocking fee plus freight both ways.
Engines or transmissions that have been disassembled or parted out cannot be returned.
Full policySecure card payment via Stripe. A deposit holds an item for 15 days.
Some engines and transmissions carry a refundable core charge, shown on the product page where it applies.
Payment termsCatalogue data
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In the seller's words
The Chevrolet Performance LSX 454 Long Block Crate Engine (19417357) is built for serious performance enthusiasts, featuring a race-ready reinforced LSX block, CNC-machined aluminum cylinder heads, and a high-lift camshaft for aggressive performance. This long block provides a solid foundation for high-horsepower applications, allowing you to customize your fuel system, induction, and accessories to suit your build.
A modern monster with big block displacement and LS performance!
⚠️ Not designed for marine applications. No warranty applies for vehicles registered outside the U.S. Requires aftermarket coil brackets.
✅ LSX Cast-Iron Engine Block – Reinforced for high-boost and extreme horsepower applications
✅ Aluminum Cylinder Heads – Enhances high-RPM airflow and heat management
✅ Hydraulic Roller Camshaft – Delivers aggressive lift and duration for maximum power
✅ High-Strength 8-Bolt Crankshaft – Designed for high-horsepower loads and forced induction setups
✅ Timing Cover & Valve Covers – Protects internal components for long-term reliability
✅ Harmonic Balancer – Ensures smooth operation at high RPMs
⚠️ EXCLUDES intake manifold, throttle body, oil pan, water pump, wiring harness, and electronics. These must be purchased separately or transferred from an existing setup.
| Feature | Details |
|---|---|
| Brand | Chevrolet Performance |
| Manufacturer’s Part # | 19417357 |
| Product Type | Crate Engine |
| Summit Racing Part # | NAL-19417357 |
| Crate Engine Family | Chevy LS |
| Actual Displacement | 7.4L / 454 cubic inches |
| Assembled? | ✅ Yes |
| Engine Block Material | Cast Iron (LSX) |
| Cylinder Head Material | Aluminum |
| Compression Ratio | Varies based on induction setup |
| Engine Balance | Internal |
| Camshaft Type | Hydraulic Roller |
| Rear Main Seal Style | 1-Piece |
| Intake Manifold Included? | ❌ No |
| Carburetor Included? | ❌ No |
| Throttle Body Included? | ❌ No |
| Distributor Included? | ❌ No |
| Oil Pan Included? | ❌ No |
| Valve Covers Included? | ✅ Yes |
| Timing Cover Included? | ✅ Yes |
| Water Pump Included? | ❌ No |
| Harmonic Balancer Included? | ✅ Yes |
| Flexplate Included? | ❌ No |
| Flywheel Included? | ❌ No |
| Air Cleaner Included? | ❌ No |
| Spark Plugs Included? | ❌ No |
| Spark Plug Wires Included? | ❌ No |
| Computer Included? | ❌ No |
| Wiring Harness Included? | ❌ No |
| Supercharger Included? | ❌ No |
| Quantity | Sold Individually |
Designed for extreme performance, reliability, and LS-based power!
✔ Direct fit for LS-based builds, custom restomods, and extreme street machines
✔ Ideal for high-horsepower turbocharged or supercharged applications
✔ Designed for pre-1976 street vehicles and off-road builds
Ensure proper drivetrain and fuel system compatibility before ordering!
Professional Installation Recommended – Ensures correct fitment, tuning, and performance
⚙️ Requires Custom Fuel System & Electronics – Intake manifold, ECU, and wiring harness must be added
Built for High-Performance Applications – Requires an aftermarket oil pan and accessory drive system
⚠️ Not designed for stock LS swaps without additional components.
What is the horsepower and torque potential of this engine?
Is this engine suitable for street use?
Does it come with a flywheel and oil pan?
Can I install this engine in a classic muscle car?
Does this engine require a specific fuel type?
Upgrade your high-performance build with the legendary Chevrolet Performance LSX 454 Long Block Crate Engine!
✔ Modern LSX-Based 454 for Maximum Power
✔ Reinforced Block for Boosted & High-Horsepower Builds
✔ Ideal for Classic Chevy Restorations and High-Performance Street Builds
✔ Built for Maximum Durability, Strength, and Tunability
ORDER NOW & BUILD YOUR LSX MONSTER!
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