$8,644.99
In stock ready to ship
Engines & Transmissions
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SKU 47870889580c
Crate Engines$7,123.12
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.
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In the seller's words
The Chevrolet Performance SP383 EFI Turnkey Long Block Crate Engine (19433046) is a modern take on the legendary 383 stroker, combining EFI technology, aluminum heads, and a high-performance camshaft to create an engine with more torque, better fuel economy, and enhanced drivability.
A fuel-injected powerhouse built for today’s muscle car enthusiasts!
✅ Cast-Iron Engine Block – Built for durability and high-performance applications
✅ Aluminum Cylinder Heads – Reduces weight and improves cooling efficiency
✅ EFI Throttle Body & Intake Manifold – Ensures modern fuel delivery and throttle response
✅ Hydraulic Roller Camshaft – Provides high-rpm capability with smooth operation
✅ Distributor & Ignition System – Includes high-performance ignition for reliable spark delivery
✅ Flexplate & Harmonic Balancer – Maintains smooth engine operation and reduces vibrations
✅ Water Pump & Timing Cover – Ensures proper cooling and camshaft timing
✅ Oil Pan & Valve Covers – Protects internal components and enhances durability
✅ Computer & Wiring Harness – Ensures seamless EFI integration
✅ Spark Plugs & Wires – Optimized for high-performance ignition and combustion efficiency
⚠️ EXCLUDES flywheel, air cleaner, and supercharger. These must be purchased separately based on your vehicle setup.
| Feature | Details |
|---|---|
| Brand | Chevrolet Performance |
| Manufacturer’s Part # | 19433046 |
| Product Type | Crate Engine |
| Summit Racing Part # | NAL-19433046 |
| Crate Engine Family | Chevy Small Block |
| Actual Displacement | 6.3L / 383 cubic inches |
| Assembled? | ✅ Yes |
| Engine Block Material | Cast Iron |
| Cylinder Head Material | Aluminum |
| Advertised Compression Ratio | 9.72:1 |
| Engine Balance | External |
| Camshaft Type | Hydraulic Roller |
| Rear Main Seal Style | 1-Piece |
| Intake Manifold Included? | ✅ Yes |
| Intake Style | Fuel Injection |
| Carburetor Included? | ❌ No |
| Throttle Body Included? | ✅ Yes |
| Distributor Included? | ✅ Yes |
| Oil Pan Included? | ✅ Yes |
| Valve Covers Included? | ✅ Yes |
| Timing Cover Included? | ✅ Yes |
| Water Pump Included? | ✅ Yes |
| Harmonic Balancer Included? | ✅ Yes |
| Flexplate Included? | ✅ Yes |
| Flywheel Included? | ❌ No |
| Air Cleaner Included? | ❌ No |
| Spark Plugs Included? | ✅ Yes |
| Spark Plug Wires Included? | ✅ Yes |
| Computer Included? | ✅ Yes |
| Wiring Harness Included? | ✅ Yes |
| Supercharger Included? | ❌ No |
| Quantity | Sold Individually |
Designed for fuel efficiency, reliability, and high-performance driving!
✔ Direct fit for classic Chevy muscle cars, hot rods, and modern restomods
✔ Designed for easy integration with EFI-compatible fuel systems
✔ Ideal for street-driven performance applications
Ensure proper drivetrain and fuel system compatibility before ordering!
Professional Installation Recommended – Ensures correct fitment, tuning, and performance
⚙️ Proper Engine Break-In Procedure Required – Maximizes lifespan and peak efficiency
Requires EFI-Compatible Fuel System – Ensure your vehicle’s fuel system can support electronic fuel injection
⚠️ Not designed for carbureted fuel systems without modifications.
What is the horsepower and torque output of this engine?
Is this engine suitable for street use?
Does it come with a flywheel and air cleaner?
Can I install this engine in a classic Chevy muscle car?
Does this engine require a specific fuel type?
Upgrade your classic Chevy with the modern performance of the Chevrolet Performance SP383 EFI Turnkey Long Block Crate Engine!
✔ Fuel-Injected Small Block with Over 450 HP
✔ Complete Turnkey Assembly for Easy Installation
✔ Ideal for Classic Chevy Restorations and High-Performance Street Builds
✔ Built for Maximum Power, Reliability, and Efficiency
ORDER NOW & EXPERIENCE EFI PERFORMANCE!
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