Roush REDL427RDSC Crate Engine – 427 CI Supercharged Small Block Powerhouse
Unleash extreme street and track performance with the Roush REDL427RDSC Crate Engine, a 427 cubic inch supercharged beast built on a small block architecture and engineered for serious horsepower. Whether you’re building a pro-touring car, high-end hot rod, or drag strip dominator, this engine delivers uncompromising performance straight from the dyno-tested labs at Roush Industries.
Designed with a Roushcharger® supercharger system, this engine combines big-block power with small-block weight and agility—producing earth-shaking power levels with exceptional throttle response and streetability.
🔧 Key Features & Highlights
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Displacement: 427 Cubic Inches (7.0L)
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Forced Induction: ROUSH Supercharger – engineered for instant torque and high-RPM horsepower
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Fuel System: Electronic Fuel Injection (EFI) – delivers modern reliability and performance
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Block: Dart™ high-strength small block, built for durability under boost
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Heads: CNC-ported aluminum heads for maximum airflow and efficiency
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Camshaft: Hydraulic roller cam – optimized for power and drivability
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Horsepower & Torque: Available upon request; dyno-certified results typically 750+ HP / 650+ lb-ft (varies with boost level and tune)
📊 Core Engine Specs
| Specification | Details |
|---|---|
| Displacement | 427 CI / 7.0L |
| Induction | Roush Supercharged |
| Fuel Delivery | EFI – Roush Calibrated |
| Camshaft Type | Hydraulic Roller |
| Heads | CNC-Ported Aluminum |
| Compression Ratio | ~9.0:1 (boost-friendly) |
| Horsepower Range | 750+ HP (typical) |
| Torque Range | 650+ lb-ft (typical) |
| Ignition System | EFI-Compatible |
| Oil Pan, Covers, Water Pump | Included |
| Dyno Tested | Yes – Includes test sheet and warranty |
✅ Best Applications
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Pro-Touring Builds – balance of massive power and street-friendly operation
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Drag Racers – ready for boost and high RPM abuse
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Street Rods & Muscle Cars – drop-in performance with EFI simplicity
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Restomods – combines old-school displacement with modern boost
📦 What’s Included
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Fully assembled 427ci long block
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Roush Supercharger with EFI
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Dyno test sheet with performance validation
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Warranty options through Roush authorized dealers
🔥 Why Choose Roush REDL427RDSC?
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🏁 Race-Bred Engineering: Roush engines are built and tested to professional motorsport standards
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🧰 EFI Simplicity: Modern fuel injection makes this engine reliable and tunable for street or track
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🛠️ Built for Boost: Forged internals and precision assembly to handle serious power
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📞 X Factors Motorsports Support: Get expert advice, upgrade options, and installation help
